In the beginning of his discourse on the complexity of the semantics in communicating a meaning, Mendeleyev writes: "In our ordinary conversation we are accustomed to distinguish only the idealism from the materialism, sometimes calling the latter realism. Of course, words always have their conditional meaning but, according to their origin itself, the three named words represent the complete divergence of their starting points – of the notion, and in this case the realism must be placed in the middle." In the end Mendeleyev gives the precise deninition of the Triad. In the chapter Worldview he writes: "I cannot, simply don't have enough courage, to complete the account of my Cherished Thoughts without having attemptedto convey my initial positions. In my understanding, the facet of the sciences hitherto barely achieved and, in all likelihood, still not that long obliging to serve as a facet of scientific knowledge, the facet after which already begins the non – scientific domain, always obliging to come into contact with the reality, to originate from it and to return to it, this facet comes down (I repeat again to avoid any misunderstandings – in my opinion) to the acceptance of the initial trinity of the distinct, corresponding one to another, eternal (to the extent that we can know it in reality) and all determining concepts: the substance (or matter), the force (or energy) and the spirit (or psyche)."
Mendeleyev came to the integral worldview of the basis of the Triunity. He proposed that the link of the matter and the Spirit proceeds with the aid of the energy (the information field). The material Universe is governed by God, the Supreme Mind. The unity and the integrity of the Triunity forms the basis of our Universe; its dev elopment in time occurs according to the laws set forth by God and no changes are possible without God.