Yogo bhoga yatey’, means ’yoga’ through ‘bhoga’ (enjoyment).
This is not a license for ‘bhoga’. What’s said is while you enjoy,
realize that the enjoyment is not coming from what you enjoy but that it is tapping into the happiness from the inner reservoir of all happiness.
Realise this so that you gradually become independent of all external objects and go to the root of enjoyment to enjoy within; that’s when you are free.