For the disclosure of the content of the philosophical category "Being", a number of provisions can be highlighted: The world around us, objects, phenomena really exist; they (the world around us) do; The surrounding world evolves, has an inner cause, a source of movement within it; Nature, society, man, thoughts, ideas exist equally; they differ in the ways and forms of their existence, and they form, above all because of their existence, the whole unity of the infinite and permanent world, i.e. they exist; Matter and spirit are one, but at the same time opposite essences exist, really; matter and spirit exist. These determinations are generalized by the term "substance" - an independent essence that needs nothing but itself for its existence. So being is a truly existing, stable, independent, objective, eternal, infinite substance that includes all that exists. The history of philosophy is dominated by the monistic approach, but there are two main forms of monism: idealistic monism i