The matter of "world existence" from the point of view of the modern scientific and philosophical knowledge

An integration of the scientific and philosophical types of the world perception is substantiated in the article. Author has an opinion that this integration let us more qualitatively research the sense of some terms such as "existence" and "world existence". Author affirms that from the point of view of the modern scientific and philosophical knowledge "world existence" mainly manifests itself on three fundamental processes: 1) the second thermodynamics principle that uncovers the essence of the prime cause of movement (existence) in the determinant (fundamental) space. We consider that the primary space of existence is the space of cosmic vacuum; 2) the predefined matter evolution that manifests itself in the existence in the form of alight entities. Substantially abovementioned process is explained by the directed and irreversible nature of the primary movement and this process can be realized with some fortuitousness; 3) the hierarchical manifestation of entities (matter and its states and forms) in existence. The basis of the hierarchical manifestation of entities in existence is illustrated by Khazen's law.