Invisible Supply offers the reader a new perspective on the subject of supply. Goldsmith tells us that while we typically believe that money constitutes our supply and that it comes through material means, this is not so. "The Infinite Way principle of supply," Goldsmith says, "is that in our oneness with God, we already have all that the Father has because 'I and the Father are one and all that the Father has is mine.' If we individually are experiencing a lack, it is not because of any actual lack. It is because of our inability to make contact with our supply ... The principle of supply is the realization that we already have, even though appearances may not testify to that."

In Invisible Supply, Goldsmith outlines the principles that can not only bring about growth of spiritual consciousness and inner peace, but also provide for material needs. In Goldsmith's words, "Supply is infinite and it is omnipresent wherever you may be. Like Moses, we can realize that we do not have to live on yesterday's manna, nor do we have to gather today's manna for tomorrow. The supply is infinite." This realization manifests in our experience as the fulfillment of every need.

Goldsmith guides the reader to see that to realize the infinite nature of supply, we must develop spiritual consciousness, which means coming to the experience of one's true Self. He emphasizes the important role of meditation and practicing the principles in bringing us to the place where we can rely on the Infinite Invisible for all things. Invisible Supply explains the principles of infinite supply in detail not found in any other book.