If we once recognize the oneness of the entire manifested universe and see that there is a systematic evolution of consciousness that takes place through a concurrent ever-evolving series of forms, then it is easily concluded that what has evolved must have been involved in the first place. The spiritual principle, then, is involved in Matter, similar to the example cited previously of the acorn holding the essential nature of the oak tree within it, allow it to manifest when placed into appropriately supportive circumstance.
Sri Aurobindo discusses this issue as follows: “We are bound then to suppose that all that evolves already existed involved, passive or otherwise active, but in either case concealed from us in the shell of material Nature. The Spirit which manifests itself here in a body, must be involved from the beginning in the whole of matter and in every knot, formation and particle of matter; life, mind and whatever is above mind must be latent inactive or concealed active powers in all the operations of material energy.”
“We have to come back to the idea of a spirit present in the universe and, if the process of its works of power and its appearance is in the steps of an evolution, there imposes itself the necessity of a previous involution.”