But we are compelled by the very laws of our reason to admit that the Absolute Being Unmanifest exists, for the Manifest and Relative Universe and Life _must have_ proceeded and emanated from a Fundamental Reality, which must be Absolute and Unmanifest. And this Being which our highest reason causes us to assume to exist is Being Unmanifest--God the Father--who cannot be known through the senses--whose existence is made known to us only through Pure Reason, or through the workings of the Spirit within us. In the material sense "God is Unknowable"--but in the higher sense He may be known to the Spirit of Man, and His existence may be _known_ and proven by the exercise of the highest faculties of the reason. Being Unmanifest is the One in its _actual_ existence and being. If all the world of objective life and manifestation, even to its highest forms, were withdrawn from manifestation, then there would be left--what? Simply and solely, Being Unmanifest--God the Father, alone. Into His Being all else would be withdrawn. Outside of Him there would be _nothing_. He would be Himself--One--existing in the phase of Being Unmanifest. We are aware that this idea may seem to be "too abstruse" for the minds of some of our students at first reading--it may appear like an assertion of a Being who is Non-Being. But, be not too hasty--take time--and your mind will assimilate the concept, and will find that it has a corresponding Truth imbedded in its inmost recesses, and then it will know this to be the Truth. And then will it recognize the existence of God the Father, as compared with God, the Holy Ghost. The Holy Ghost, as we have said, is the Absolute in its phase of Manifest Being. That is, it is God as manifest in the Spirit of Life, which is immanent in, and manifest in, all objective life and phenomena in the Cosmos or Universe. In previous series of lessons in the Yogi Philosophy, we have shown you that there was a Spirit of Life immanent in, and manifesting through, all forms of life. We have also shown you that everything in the Universe is alive--down to even the minerals, and the atoms composing matter. We have shown you that inasmuch as the Spirit of Life is the source of all Manifestations in the universe, and the "God in the machine" of all phenomena of force, matter and life, then it naturally follows that there can be nothing dead in the world--that there is LIFE manifesting in every object, varying only in the degree of manifestation. In our "Advanced Lessons" and in "Gnani Yoga" this subject is considered in detail. Then what is this Spirit of Life? If God is All, then it cannot be Something other than God. But it cannot well be God the Uncreate--the Absolute in its Absolute phase--the Being Unmanifest. Then what can it be?