The concept of trees being sacred crosses many cultural lines and throughout recorded history. From prehistoric times til present time, trees have provided shelter and heat and oxygen.  Humans as well as animals have long been dependent on all species of trees. Medicine is also derived from the bark and leaves of many trees.  Certain trees point to sources of underground water by the direction of their roots.  Shade from a tree has saved countless lives from the burning sun.  Many animals and some cultures of humans reside in trees, it is their home.  On some islands in the pacific which flood on a regular basis, the people climb the trees for safety until the waters recede.  Many women have given birth in trees during the storms and floods.  Mother earth protects and nurtures the top soil with tress.  The roots assist in holding the soil in place.  The leaves are used in pagan rituals as essential earth elements.