The scientific mind instantly grasps the inherent reasonableness of the existence of superphysical beings. Writing on the subject of energy, Nicola Tesla says:

"We can conceive of organized beings living without nourishment and deriving all the energy they need for the performance of their life functions from the ambient medium.*** There may be *** individualized material systems of beings, perhaps of gaseous constitution, or composed of substance still more tenuous. In view of this possibility--nay, probability--we cannot apodictically deny the existence of organized beings on a planet merely because the conditions on the same are unsuitable for the existence of life as we conceive it. We cannot even, with positive assurance, assert that some of them might not be present here in this our world, in the very midst of us, for their constitution and life manifestation may be such that we are unable to perceive them."[N]

Elementary Theosophy — Part 105

Alfred Russell Wallace, who was called "the grand old man of science," wrote in one of his latest books:

Elementary Theosophy — Part 105

"I think we have got to recognize that between man and the ultimate God there is an almost infinite multitude of beings working in the universe at large, at tasks as definite and important as any we have to perform on earth. I imagine that the universe is peopled with spirits--that is, with intelligent beings with powers and duties akin to our own, but vaster. I think there is a gradual ascent from man upward and onward."

Elementary Theosophy — Part 105

While the scientist, still lacking the absolutely conclusive evidence, goes only to the point of asserting that it is reasonable and probable that supermen exist, the occultist asserts it as a fact within his personal knowledge.[O] So we have the direct testimony of the occultists, the endorsement of the scientists as to its probability, and, perhaps the most important of all, the inherent reasonableness of the idea.

The relationship of the supermen, or great spiritual hierarchy, to the human race is that of teachers, guardians and directors. They superintend human evolution. But this does not mean in the very least the relationship that is expressed in the term "spirit guides" so frequently use by the spiritualist. That is a totally different thing. They seem to imply that the "spirit guide" gives direct instructions or orders to the person known as a "medium." If we were all thus controlled and directed what would become of free will? Evolution can proceed only if we use our initiative in the affairs of life. If we were to be directed by the wisdom and will of others we would not evolve at all. We would be merely automata directed by others, and no matter how great they were we could never thus develop our judgment and self-reliance. It is not thus that the great spiritual hierarchy directs human evolution. It is, in part, by working with mankind en masse and bringing mental and moral forces to play upon them, thus stimulating latent spiritual forces from within. It is also by directly, or indirectly placing ideals instead of commands before the race. In another direction it is actual superintendence, or administration, or teaching, in a way that does not interfere with one's initiative or will. If the soul is to evolve it must have liberty--even the freedom to make mistakes.