The Atmashatkam (आत्मषट्कम्, ātmaṣaṭkam), also known as Nirvanashatkam (निर्वाणषट्कम्, Nirvāṇaṣaṭkam), is a composition consisting of 6 fold śloka (and hence the name Ṣaṭ-ka to mean six-fold) written by the Hindu philosopher Adi Shankara summarizing the basic teachings of Advaita Vedanta, or the Hindu teachings of non-dualism. It was written around 788-820 AD.
1st fold (śloka)
मनोबुद्ध्यहङ्कार चित्तानि नाहं
न च श्रोत्रजिह्वे न च घ्राणनेत्रे ।
न च व्योम भूमिर्न तेजो न वायुः
चिदानन्दरूपः शिवोऽहम् शिवोऽहम् ॥१॥
Mano-Buddhy-Ahangkaara Cittaani Naaham
Na Ca Shrotra-Jihve Na Ca Ghraanna-Netre |
Na Ca Vyoma Bhuumir-Na Tejo Na Vaayuh
Cid-Aananda-Ruupah Shivo[a-A]ham Shivo[a-A]ham ||1||
1.1: Neither am I the Mind, nor the Intelligence or Ego,
1.2: Neither am I the organs of Hearing (Ears), nor that of Tasting (Tongue), Smelling (Nose) or Seeing (Eyes),
1.3: Neither am I the Sky, nor the Earth, Neither the Fire nor the Air,
1.4: I am the Ever Pure Blissful Consciousness; I am Shiva, I am Shiva,
The Ever Pure Blissful Consciousness.