Philosophical ideas in ancient India begin to form around the 2nd millennium BC. In our time, they have become known thanks to the ancient Indian literary monuments under the general name "Vedas", literally meaning knowledge, knowledge. "Vedas" are a kind of hymns, prayers, chants, spells, originating in the steppes of the Southern Urals. One of the earliest literary monuments of Ancient China, which outlined philosophical ideas, is the "I Ching" ("Book of Changes"). The name of this source has a deep meaning, the essence of which is an attempt to reflect the processes occurring in nature, including its celestial sphere with a natural system of stars.