Krishna

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When in doubt begin at the beginning.

2.11 - asochyan anvashochastvam - you are worrying about something not to worry about

but, pragyavaadamsha bhaashashe - but speaking like wise

panditah nanushochanti - but wise dont worry about.

gatasun agatasun - dead or living - wise don't worry

asu - prana

also, it means sense objects.

asusu ramyate iti asurah.

Gita saaram - remove ignorance; only knowledge can relieve ignorance.

KY - we should do.Incomplete without JY. JY impossible without KY.