what trees represent
The Christmas tree symbolizes the spirit of the Christmas season and, to Christians, the everlasting life and sacrifice of Jesus Christ. In the Bible, the cross upon which Jesus was crucified is often referred to as a tree. The lights and decorations on the tree represent the wonder and glory associated with the birth and resurrection of Jesus.
The oak tree, which is the national tree of many countries, primarily symbolizes strength and endurance. Other qualities associated with the oak tree include protection, success and stability.