Jñāneśvarī (commentary on the Bhagavadgītā) 16.282

16.282

nigaṇeyā āṇi praveśā |
citta nedītu āveśā |
kośakiṭu jaisā |
jācinnalā paiṃ ||

Their thought has no urge / toward departing or entering [safely], / just like the silkworm / trapped in its cocoon;