Christmas is a vivid multi-coloured reminder to us that God cares. In the UK, Christmas comes during winter, during the dark, bleak month of December, and the vibrancy and vigour of the truth that God cares is badly needed as we struggle through the hours of darkness which far outweigh the hours of light.
Christmas is a tangible reminder that God cares for the world He created and for the people He made. He cares so much that He did not abandon us to our disobedience and rebellion, but sent His son to be the reconciling bridge back to fellowship with God. We only need to look at Jesus to realise that God cares.