। ॥ ४३७ ॥
In plain words
Whatever the body and senses need to do, he simply lets them do it — with no 'I am doing this' and no 'this is mine' attached, no investment either way. That is the one called liberated while still alive.
Close to the Sanskrit
He who, in whatever is to be done by the body and senses, remains with indifference, devoid of the notions 'I' and 'mine' — he is regarded as liberated-while-living.