invisible beliefs

visitors from foreign countries should learn that several religions are mixed in japan. for example,on christmas day,people celebrate the day with their friends,family,or lover. for most people,the day is special.it's very good,not bad,of course.the problem will occur a few days later,on new year's day. almost every people go to shrines,and wish their happiness of the year. but why? celebration of christmas is based on christianity,on the other hand,wishing of new year's day,on buddism. foreigner might think it's very strange. however it's natural for japanese. if they don't know the fact,they would be confused so much.