Rumi said, There is no proof of the soul.
But isn't the return of spring and how it
springs up in our hearts a pretty good hint?
~ Mary Oliver from "Whistling Swans" in DEVOTIONS
Through greater intimacy with the natural world, we begin to appreciate its complexity and gain a clearer understanding of the relationship between the rains, the soul, and the plants, the animals and the trees, and how the welfare of one living being depends on that of another.