Before revision: The 16th century Yogacintāmaṇī describes a posture, Nidrāharāsana "Posture to prevent sleep", where a fine balance is maintained with a T-shaped prop.
After revision: the lower legs crossed in Padmasana and the body upright from the knees (a form of Gorakshasana), and the hands holdingThe 16th century Yogacintāmaṇī describes a posture, Nidrāharāsana "Posture to prevent sleep", where a fine balance is maintained with a T-shaped prop.