It is completely possible to always live peaceful and balanced life.
Pleasure and pain are felt by the body and the mind therefore it takes form of thought in the mind. One can go beyond these feelings of pain and pleasure by sifting the mind or by dis-solving it into consciousness.
Human consciousness is his real nature which is made of prana (Vital-force), prana comes from sky thus human consciousness is also inaccessible like sky.
However experiencing this blissful state of pure consciousness is not easy because of sceptic mind but through regular and long-time meditation practice one can attain this state therefore he is (jeevan-mukta) liberated soul.
Written by- Himanshu joshi