The Lord wants and demands that the living entities satisfy His senses By the spell of illusion one tries to be happy by serving his personal sense gratification in different forms which will never make him happy. Instead of satisfying his own personal material senses, he has to satisfy the senses of the Lord. That is the highest perfection of life. The Lord wants this, and He demands it. One has to understand this central point of Bhagavad-gita.
Srila Prabhupada — Preface to Bhagavad-gita As It Is