Maharishi Mahesh Yogi was one of the great seers of modern times. He experienced a profound cognition that the structure of the Rig Veda is its own commentary. By understanding the sequential unfolding of the sounds of the Rig Veda into the words and then the verses and chapters, the entire knowledge of the Veda and its manifestation into creation is revealed. Thus the opening sound of the Veda, ‘A’ is elaborated in the rest of the sounds of the first word ‘Agnim’, which is then elaborated in the first stanza (richa), the first hymn (sukta), and from there the entire Veda unfolds sequentially . He called this the Apaureshaya Bhashya or “Uncreated Commentary” of the Veda.
The Vedic seer who cognized the first hymn of the Vedas was Madhucchandas and tradition holds that his family was from Kausani.
Here is what one scholar yogi wrote about Kausani.
Kausani is so named because it is the closest village to the source of the Koshi river, which in turn was named after the Royal Rishi Kusha, who lived early in the Treta Yuga. His descendants were known as the Kaushikas, and they included such notables as Rishi Vishvamitra and Avatar Parasurama. Vishvamitra’s sister was named Satyavati, and she was Parasurama’s grandmother. When she dropped her body, her pure spirit assumed the form of the Koshi river. Thus, this area of Kumaon, round about the Koshi river, is known as the land of the Kaushikas.
Vishvamitra’s most illustrious son was Madhuchhandas, who cognized the first richa and sukta of the Rig Veda, which according to Maharishi Mahesh Yogi’s apaurusheya bhashya represents the unmanifest blueprint of creation from which the entire Rig Veda and all the other aspects of the Vedic literature, as well as the entire creation comes out. Madhuchhandas actually cognized the first 10 suktras of the Rig Veda, which lay out the blueprints for the 10 mandalas of the Rig Veda as well as the 10 states = 9 states of consciousness and the 10th state of pure being.
According to Maharishi Mahesh Yogi the Vedic rishis represent qualities of consciousness, which are determined by the land or vicinity in which the rishis live. Their cognitions are actually determined by the qualities of the earth in that particular area. Hence, Kausani and its environs must contain the qualities from which the unmanifest blueprint of creation emerges in consciousness. The scriptures state that in each Satya Yuga the Veda is recognized. It follows that such cognitions should begin here, where the first 10 suktas of the Ved were cognized in the ancient past.
We recently visited the Rudra Dhari Baba, who lives about 10 kilometers away in the forest near the source of the Koshi River. He has been living there for 18 years on milk and fruit, and met Maharishi three times during the era of Shankaracharya Shantananand Sarasvati. He confirmed the historical-puranic account summarized above, which suggests that this was the original land of the Kaushikas. The historical account comes from the Mahabharata and various Puranas.