"A simple act of caring creates an endless ripple"
One of my favorite Christmas songs is If Everyday Could Be Christmas. This video was about a birthday present, but it represents the spirit of Christmas, which should be the spirit 365 days.
To pass on good will and have the spirit of Christmas, one need not be a Christian or possess belief in any religion. It falls under the ancient golden rule, of which was encouraged by an influential person by the name of Jesus of Nazareth:
Therefore all things whatsoever ye would that men should do to you, do ye even so to them: for this is the law and the prophets. - [Book of Matthew 7:12]The birth of that same person is honored today, continued many centuries later on a day called Christmas (Crissmas).