Chapter 4 – JnanaYoga
Shloka 37
TEXT 37
yathaidhāṁsi samiddho ‘gnir
bhasma-sāt kurute ‘rjuna
jñānāgniḥ sarva-karmāṇi
bhasma-sāt kurute tathā
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O Arjuna, just as firewood turns into ashes in the blazing fire, the fire of knowledge burns all actions similarly.
The knowledge of the Self(Supreme) thus acquired by doing yajna and then from a spiritual guru, will burn all the karmas just like how a fire burns a firewood into ashes. ‘Burn all the karmas’ means it will stop you from creating future karmas, and it will let you sail through the current karma with knowledge.
Sushma's Quest 