Moksha is not freedom from action but freedom in action.

Get freedom from bondage from birth and death

I react and leaves behind karma phalas and vasanas

Freedom from vasanas, karma phalas

Karma yoga gives you the opportunity to catharise your vasanas - the freedom to get out of the repetitive chain of desire - action - reaction.

When such a mind becomes calm, there comes an efficiency.

And you do the action and dont become bound.

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