In the Sixth chapter of Tejo Bindu Upanishad, the Sage Ribhu continues to describe the nature of Atman.
Atman is Brahman
Ribhu Gita and Tejo Bindu Upanishad.
The Four Great Aphorisms.
- Prajnanam Brahma: The supreme science is Brahman. The absolute knowledge to be known is Brahman. This aphorism appears at the end of Rig Veda.
- Aham Brahma Asmi: I am the Brahman. This appears at the end of Yajur Veda.
- Tat Tvam Asi: Thou art that. You are that only. You are Brahman only. This aphorism appears at the end of Sama Veda.
- Ayam Atma Brahma: This Atman is Brahman. This appears at the end of Atharva Veda.
Reference: Sanskrit Text Reference