The pillar of roots to the right represent the expansion of the tree, as the will with time grow to be as the rest of the tree is. If these roots aren't pruned back, the tree will continue to grow outward, and may eventually cover acres of land.
It makes one think how infinitesimal the span of time our existence is in comparison to the old things of the earth.
Pentax SMC Takumar 50mm 1.4
F/8 (I think)