Giving up or renunciation, is the substance of Sanyasa. Sitting before the fire or with the sun at the back, sleeping at night with knee tucked under the chin. All religions and creeds stress the need for true knowledge and wisdom. Happiness is the internal state of the mind. It does not reside in an external object or in the physical body.
Pleasure is a state of the mind.
The satisfaction springing from sense - enjoyment is pleasure of one kind. A little study of the Bhagavad Gita, drinking a drop of Ganga water. We sleep in the night and dream. In the dream we experience many hardships and cares. Don't waste your energy in enmity or friendship.