Holly has an interesting history with Christmas. It was originally a plant reverenced by the Druids because it was an evergreen. Over time, Christians began to see a metaphor for Christ in the plant. The red berries represent the blood of Jesus by which mankind can be saved. The green is a symbol for eternal life. The thorniness has a double meaning: it reminds us of the crown on thorns Jesus wore at the crucifixion and it also illustrates the fact that God never promised his children a life without trials, but rather the grace and strength to endure and grow through them.