Bhagavatapurana 5.5.5

5.5.5

parābhavas tāvad abodha-jāto yāvan na jijñāsata ātma-tattvam /
yāvat kriyās tāvad idaṃ mano vai karmātmakaṃ yena śarīra-bandhaḥ //

5. This loss of self-realisation due to ignorance lasts only so long as man does not think of enquiring into the truth of self; as long as there is activity (karma) the mind remains disposed to karma and by this mind the bondage of mortal (gross body) is brought about.