Vasishta Yoga Samhita:
(also known as Maha-Ramayana, Arsha Ramayana, Vasiṣṭha Ramayana, Yogavasistha-Ramayana and Jnanavasistha.).
A historically popular and influential syncretic philosophical text of Hinduism, dated to the 6th CE or 7th CE — 14th CE or 15th CE.
The text is attributed to Maharishi Valmiki, but the real author is unknown. It is named after sage Vasistha who is mentioned and revered in the seventh book of the Rigveda. The complete text contains over 29,000 verses, while the short version of the text, called Laghu yogavāsiṣṭham, contains 6,000 verses, translated into Persian by the 15th-century.

Between two thoughts there is an interval of no thought. That interval is the Self, the Atman. It is pure Awareness only.
