Happiness comes from the soul’s satisfaction not from satisfaction of vitals or body.
If the mind becomes balanced and detached, and comes to dwell in its own true home, imbued with the love of God, then it enjoys the essence of supreme spiritual wisdom; it shall never feel hunger again.
One should not injure, subjugate, enslave, torture, or kill any animal, living being, organism, or sentient being. Just as suffering is painful to you, in the same way it is painful, disquieting and terrifying to all animals, living beings, organisms and sentient beings.
As long as you have attachment to the body and attachment to objects, fear and suffering will be with you. Therefore Krishna told Arjuna to develop his discrimination and rid himself of body consciousness. Only then he would be able to develop integral vision.

