Samadhi Pada
Sentence 10
abhava pratyaya alambana tamo vrittir nidra ||10||
अभावप्रत्ययालम्बना तमोवृत्तिर्निद्र ॥१०॥
abhāva-pratyaya-ālambanā tamo-vṛttir-nidra ||10||
Deep sleep is the absence of all impressions resulting from opacity in that which is mutable in human beings (chitta). ||10||
abhāva = absence; non-presence; lack
pratyaya = impressions; that which is in the mind; opacity of chitta, i.e. impressions in chitta via vrittis.
ālambana = support, basis, interrelationship, based on
tamo = inertia. Tamas is one of the three gunas, i.e. the basic properties of matter.
vṛtti = lack of clarity; waves; thought waves
nidrā = sleep; deep sleep