Ecology is a science that studies relationships between living organisms and the environment they live in.
Its branches focus on studying specific kinds of these organisms and are called respectively. For example: ecology of river beaver or ecology of sturgeon etc. The object can be researched in light of its biotope, places and conditions of its reproduction, its mating patterns and other interaction with representative of the same species, with competitors and enemies (predators, parasites etc.) or just neighbors.
Human being can also be an object of such research. He is studied mostly in his working environment (sea, coal mines, space flight etc.)
A separate sub-branch of ecology of human being is protection of his environment. In many countries there are special ecological services as well as voluntary environmentalist organizations, like Greenpeace. The environmentalists struggle with pollution of water reservoirs, of air and soil, as well as for preserving natural forests and fauna. They protest against nuclear weapons testing, fight for banning of chemical, biological and nuclear weapons and antipersonnel mines that cripple civilians and animals. They also call for banning of the usage of traps in fur trade, which cause incredible sufferings to animals...
The environmentalist movement deserves highest praise and every possible kind of support. The applied ecological studies of professional activities of man are also very important. But in this book we will attempt to see that this is not everything that the ecology of human being may study.
After all, man is not only his body, but also, and primarily, consciousness. And he not only lives in the close contact with air, water, soil, other people, animals, plants, viruses and bacteria... He also interacts with non-embodied individual consciousness (spirits of people and animals). And also — which is the most important of all — with God.
In realty we live in a multidimensional environment. And the material world that we can perceive with our senses is just a small portion of it. Other layers (eons or lokas) of the multidimensional universe usually remain completely out of our perception, although they are filled with life that can see us and which influences us.
That is what we will talk about now. And we will see that ecological science has a much broader field of study, than one ordinarily thinks.