Bhagavad Gita Chapter 10, Verse 22

वेदानां सामवेदोऽस्मि देवानामस्मि वासवः | इन्द्रियाणां मनश्चास्मि भूतानामस्मि चेतना ||

vedānāṁ sāma-vedo 'smi devānām asmi vāsavaḥ indriyāṇāṁ manaś cāsmi bhūtānām asmi cetanā

Among the Vedas, I am the Sama Veda; among the gods, I am Indra; among the senses, I am the mind; among living beings, I am consciousness.

Krishna continues enumerating manifestations, now in knowledge and consciousness. 'Vedānāṁ sāma-vedo 'smi'—among the Vedas, I am the Sama Veda. The Sama Veda is the Veda of melodies and chants, considered particularly sacred. 'Devānām asmi vāsavaḥ'—among the gods, I am Indra, the king of gods. 'Indriyāṇāṁ manaś cāsmi'—among the senses, I am the mind. The mind is the controller of all senses. 'Bhūtānām asmi cetanā'—among living beings, I am consciousness. Consciousness is what makes beings alive, aware, sentient. This verse shows Krishna manifesting as the best in knowledge (Sama Veda), power (Indra), control (mind), and awareness (consciousness).