Shiva Purana
पूर्वमेवोपदिष्टं तत्सोहमस्मीति भावयेत् ॥ तत्त्वमित्यत्र तदिति सशब्दार्थः प्रबोधितः॥ ४ ॥
That has been taught before. The devotee shall meditate “I am he” “That you are;” in this the meaning of “That” has already been explained.
english translation
pUrvamevopadiSTaM tatsohamasmIti bhAvayet ॥ tattvamityatra taditi sazabdArthaH prabodhitaH॥ 4 ॥
hk transliteration by Sanscript