Mahabharata 14.18.10
यथा च दीपः शरणं दीप्यमानः प्रकाशयेत्एवमेव शरीराणि प्रकाशयति चेतना
yathā ca dīpaḥ śaraṇaṃ dīpyamānaḥ prakāśayetevameva śarīrāṇi prakāśayati cetanā
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book