For instance, in the mineral kingdom the soil absorbs the
air and the water and decomposes the creatures within it, and thus enables the
existence of plants. The more
microscopic animals exist in the soil, the better the plants will grow. And when the plant has grown, it is consumed
by the animal, is incorporated in its body, and is endowed with a new
existence. Thus it progresses further
and assumes a higher reality than that which it initially possessed. This indeed is the means of progress and renewal
from the mineral to the vegetable, from the vegetable to the animal, and from
the animal to the human world.
- ‘Abdu’l-Baha (From a talk, new resources
prepared by the Baha’i World Center, 2019; Baha’i Reference Library)