what’s not to understand.
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Holly (green leaves, prickly points, red berries): from ancient times evergreens were symbols of life and eternity, now suggest that the child born in the manger would wear a crown of thorns and shed drops of blood.

Mistletoe: long associated with healing in the pagan world, became a symbol of the healing power of Christ.

Peace.
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As far as pagan observances being incorporated into a Christian holiday, I have never seen a yule log or mistletoe in a church.
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See, they sent people out from Rome to convert the heathens, the pagans, those who were not Christian….and they did so, by accommodating their beliefs, their gods became saints, and their holidays were absorbed into Christianity…hence: Christmas, Lent, Easter, Halloween, just to name a couple of really popular ones.

Thinking of adding something new?
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History Astronomers have been researching the actual date of Christ’s birth for years now. In Luke’s gospel he says that Christ was born at the same time the ewes were giving birth. The ewes only give birth once a year in the spring. Which would coincide with ‘the lamb of God.’

They did further study with regards to the star constellation that the wise men, or Majai, were talking about. There wasn’t exactly a star of bethlehem but there was a very unusual star formation I believe that included Jupiter. The date of this very unusual star constellation is the only known date with regards to unusual star formations.

This date was April 17, in the year of 7BC. Astronomers and quite a few History Scholars believe this is the actual birth date of Jesus. Pretty cool….
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Conclusion
The present writer in inclined to think that, be the origin of the feast in East or West, and though the abundance of analogous midwinter festivals may indefinitely have helped the choice of the December date, the same instinct which set Natalis Invicti at the winter solstice will have sufficed, apart from deliberate adaptation or curious calculation, to set the Christian feast there too.

Liturgy and custom
The calendar
The fixing of this date fixed those too of Circumcision and Presentation; of Expectation and, perhaps, Annunciation B.V.M.; and of Nativity and Conception of the Baptist (cf. Thurston in Amer. Eccl. Rev., December, 1898). Till the tenth century Christmas counted, in papal reckoning, as the beginning of the ecclesiastical year, as it still does in Bulls; Boniface VIII (1294-1303) restored temporarily this usage, to which Germany held longest.

Popular merry-making
Codex Theod., II, 8, 27 (cf. XV, 5,5) forbids, in 425, circus games on 25 December; though not till Codex Just., III, 12, 6 (529) is cessation of work imposed. The Second Council of Tours (can. xi, xvii) proclaims, in 566 or 567, the sanctity of the "twelve days" from Christmas to Epiphany, and the duty of Advent fast; that of Agde (506), in canons 63-64, orders a universal communion, and that of Braga (563) forbids fasting on Christmas Day. Popular merry-making, however, so increased that the "Laws of King Cnut", fabricated c. 1110, order a fast from Christmas to Epiphany.

The three Masses
The Gelasian and Gregorian Sacramentaries give three Masses to this feast, and these, with a special and sublime martyrology, and dispensation, if necessary, from abstinence, still mark our usage. Though Rome gives three Masses to the Nativity only, Ildefonsus, a Spanish bishop, in 845, alludes to a triple mass on Nativity, Easter, Whitsun, and Transfiguration (P.L., CVI, 888). These Masses, at midnight, dawn, and in die, were mystically connected with aboriginal, Judaic, and Christian dispensations, or (as by St. Thomas, Summa Theologica III:83:2) to the triple "birth" of Christ: in Eternity, in Time, and in the Soul. Liturgical colours varied: black, white, red, or (e.g. at Narbonne) red, white, violet were used (Durand, Rat. Div. Off., VI, 13). The Gloria was at first sung only in the first Mass of this day.

The historical origin of this triple Mass is probably as follows (cf. Thurston, in Amer. Eccl. Rev., January, 1899; Grisar, Anal. Rom., I, 595; Geschichte Roms . . . im Mittelalter I, 607, 397; Civ. Catt., 21 September, 1895, etc.): The first Mass, celebrated at the Oratorium Præsepis in St. Mary Major — a church probably immediately assimilated to the Bethlehem basilica — and the third, at St. Peter’s, reproduced in Rome the double Christmas Office mentioned by Etheria (see above) at Bethlehem and Jerusalem. The second Mass was celebrated by the pope in the "chapel royal" of the Byzantine Court officials on the Palatine, i.e. St. Anastasia’s church, originally called, like the basilica at Constantinople, Anastasis, and like it built at first to reproduce the Jerusalem Anastasis basilica — and like it, finally, in abandoning the name "Anastasis" for that of the martyr St. Anastasia. The second Mass would therefore be a papal compliment to the imperial church on its patronal feast. The three stations are thus accounted for, for by 1143 (cf. Ord. Romani in P.L., LXXVIII, 1032) the pope abandoned distant St. Peter’s, and said the third Mass at the high altar of St. Mary Major. At this third Mass Leo III inaugurated, in 800, by the coronation of Charlemagne, the Holy Roman Empire. The day became a favourite for court ceremonies, and on it, e.g., William of Normandy was crowned at Westminster.

Dramatic presentations
The history of the dedication of the Oratorium Præsepis in the Liberian basilica, of the relics there kept and their imitations, does not belong to this discussion [cf. CRIB; RELICS. The data are well set out by Bonaccorsi (Il Natale, Rome, 1903, ch. iv)], but the practice of giving dramatic, or at least spectacular, expression to the incidents of the Nativity early gave rise to more or less liturgical mysteries. The ordinaria of Rouen and of Reims, for instance, place the officium pastorum immediately after the Te Deum and before Mass (cf. Ducange, Gloss. med. et inf. Lat., s.v. Pastores); the latter Church celebrated a second "prophetical" mystery after Tierce, in which Virgil and the Sibyl join with Old Testament prophets in honouring Christ. (For Virgil and Nativity play and prophecy see authorities in Comparetti, "Virgil in Middle Ages", p. 310 sqq.) "To out-herod Herod", i.e. to over-act, dates from Herod’s violence in these plays.

The crib (creche) or nativity scene
St. Francis of Assisi in 1223 originated the crib of today by laicizing a hitherto ecclesiastical custom, henceforward extra-liturgical and popular. The presence of ox and ass is due to a misinterpretation of Isaiah 1:3 and Habakkuk 3:2 ("Itala" version), though they appear in the unique fourth-century "Nativity" discovered in the St. Sebastian catacombs in 1877. The ass on which Balaam rode in the Reims mystery won for the feast the title Festum Asinorum (Ducange, op. cit., s.v. Festum).

Hymns and carols
The degeneration of these plays in part occasioned the diffusion of noels, pastorali, and carols, to which was accorded, at times, a quasi-liturgical position. Prudentius, in the fourth century, is the first (and in that century alone) to hymn the Nativity, for the "Vox clara" (hymn for Lauds in Advent) and "Christe Redemptor" (Vespers and Matins of Christmas) cannot be assigned to Ambrose. "A solis ortu" is certainly, however, by Sedulius (fifth century). The earliest German Weihnachtslieder date from the eleventh and twelfth centuries, the earliest noels from the eleventh, the earliest carols from the thirteenth. The famous "Stabat Mater Speciosa" is attributed to Jacopone da Todi (1230-1306); "Adeste Fideles" is, at the earliest, of the seventeenth century. These essentially popular airs, and even words, must, however, have existed long before they were put down in writing.

Cards and presents
Pagan customs centering round the January calends gravitated to Christmas. Tiele (Yule and Christmas, London, 1899) has collected many interesting examples. The strenæ (eacute;trennes) of the Roman 1 January (bitterly condemned by Tertullian, de Idol., xiv and x, and by Maximus of Turin, Hom. ciii, de Kal. gentil., in P.L., LVII, 492, etc.) survive as Christmas presents, cards, boxes.

The yule log
The calend fires were a scandal even to Rome, and St. Boniface obtained from Pope Zachary their abolition. But probably the Yule-log in its many forms was originally lit only in view of the cold season. Only in 1577 did it become a public ceremony in England; its popularity, however, grew immense, especially in Provence; in Tuscany, Christmas is simply called ceppo (block, log — Bonaccorsi, op. cit., p. 145, n. 2). Besides, it became connected with other usages; in England, a tenant had the right to feed at his lord’s expense as long as a wheel, i.e. a round, of wood, given by him, would burn, the landlord gave to a tenant a load of wood on the birth of a child; Kindsfuss was a present given to children on the birth of a brother or sister, and even to the farm animals on that of Christ, the universal little brother (Tiele, op. cit., p. 95 sqq.).

Greenery
Gervase of Tilbury (thirteen century) says that in England grain is exposed on Christmas night to gain fertility from the dew which falls in response to "Rorate Cæli"; the tradition that trees and flowers blossomed on this night is first quoted from an Arab geographer of the tenth century, and extended to England. In a thirteenth-century French epic, candles are seen on the flowering tree. In England it was Joseph of Arimathea’s rod which flowered at Glastonbury and elsewhere; when 3 September became 14 September, in 1752, 2000 people watched to see if the Quainton thorn (cratagus præcox) would blow on Christmas New Style; and as it did not, they refused to keep the New Style festival. From this belief of the calends practice of greenery decorations (forbidden by Archbishop Martin of Braga, c. 575, P.L., LXXIII — mistletoe was bequeathed by the Druids) developed the Christmas tree, first definitely mentioned in 1605 at Strasburg, and introduced into France and England in 1840 only, by P
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I don’t think it matters what is done to celebrate, whether its pagan rituals or watching Frosty the Snowman or just hanging out with family and friends.

People get too concerned about what other people are doing, I think we should all chill and live and let live.
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How many Christians use a yule log or mistletoe to worship a pagan god?

How many Christians use Dec 25 to worship the sun God?

Clearly, pagan holidays not only can be made Christian – there are plain examples in history (such as Christmas) where even the smallest details have been divorced entirely from pagan worship and are never practiced in any regard to pagan worship

Christmas – and several other holidays as well – have been *thoroughly* Christianized.

Jim, http://www.bible-reviews.com
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Both Christmas and Easter are modifications of older (Pagan /Wicca ) religious celebrations
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