What in fact is the work of thought? Subtle but unorganized matter exists both in and around us, for it has not yet been given any form. Our thoughts hold the power to shape this matter, and our role is to use it like modelling clay in order to become creators in the world of beauty, harmony and light.
The things that people create on the physical plane are important, of course, but their psychic creations are infinitely more important, and it is upon these that they will be judged by heaven.
As most human beings are not in control of their own thoughts, they fill the world with monstrous, diabolical creatures that go about spreading evil.
On the other hand, disciples, who understand the power of thought, try to produce only beneficial creatures that will bring light and peace to the world.