Tree of Life

the tree of life was a central part of Celtic spirituality.  The tree was a sustainer of life, providing food, shelter and fuel.  Trees wer ealso a connection to the world of spirits and ancestors.  Trees provide healing shelter and wisdom.  The most sacred tree was the Oak.  The root of the oak was the doorway to the otherworld.  You could fall asleep next to an oak and awake in the fairy realm.  The name of the Celtic priestly class, the Druids is derived from the words for "oak" and "wise".