Verse 31

संशान्तदुःखमजडात्मकमेव सुप्त-मानन्दमन्थरमपेतरजस्तमो यत् ।आकाशकोशतनवोऽतनवा महान्त-स्तस्मिन्पदे गलितचित्तलवा वसन्ति

In plain words

That state which is sorrow wholly stilled, a sleep whose very nature is not inert, languid with bliss, from which rajas and tamas have departed -- in that state dwell the great ones, their bodies the sheath of space, bodiless, every particle of citta melted away.