Verse 115kūpādike mahā-garte sthitvopari nirīkṣaṇāt ।
avikalpa-mateḥ samyak sadyaś citta-layaḥ sphuṭam ॥Standing above a deep well, chasm, or the like and gazing into it, one’s mind becomes completely free of thought, and suddenly dissolves into clarity.