There's a tree, some say, at the heart of all the worlds. Its roots wind down into the ashes of the past and its branches reach into future skies. At the centre of a grove at the heart of the first of all forests, this titanic world tree binds the essences of That-Which-Was, That-Which-Is and That-Which-Will-Be together. There are many names for this tree, including Yggdrasil, the Tree of Life and the lotus of Meru.
A short essay on the use and meaning of trees in fantasy. Very enjoyable.