The Midwinter Celebration is what most call 'Christmas'. A Pagan celebration to highlight the shortest day, and the days becoming longer, and the returning of the sun. The event was hijacked by the Christians, and warped by the Victorians. Finally, it was shafted by Consumerism!
So if you are, not a Christian, and are bored by the Christmas hype, then get back to basics and have a party!