What can decay teach us?

What can decay teach us?

When the trees drop their leaves they surrender to this process, giving up the dead and releasing themselves from the past. When they drop their seeds they trust to the new, casting out their young on an unknown journey into the future. But there are always a few leaves and seeds that cling to the parent and need to be shaken loose.
— Environmental Arts Therapy and The Tree of Life - Ian Siddons Heginworth, 2008