Mahabharata 12.278.27

ततः पिनाकी योगात्मा ध्यानयोगं समाविशत्उशना तु समुद्विग्नो निलिल्ये जठरे ततः

tataḥ pinākī yogātmā dhyānayogaṃ samāviśatuśanā tu samudvigno nililye jaṭhare tataḥ

Our plain-language meaning of this verse is waiting for scholar review.