source

a leaf falls and the leaf is mourned until the branch is seen as source of leaves

a branch falls and the branch is mourned until the tree is seen as source of branch

a tree falls and the tree is mourned until the earth is seen as source of tree

the earth falls and the earth is mourned until the universe is seen as source of earth

the universe falls and the universe is mourned until nothing is seen as source of universe

nothing falls and nothing is mourned