Pleasure of The Lord
For the pleasure of the Lord, His devotees call Him by His Holy Name to render service unto Him, not to fulfill their own desires.
Pleasure of Lord Krishna
Total absorption in playing flute for pleasure of Lord Krishna.
Never Insult Devotees
Even if devotees excuse those who insult them, Krishna takes a diffrent position and he is strict on this matter. Krishna will not excuse or tolerate any insult of his devotees. If we want to please Krishna, we must never insult his devotees. — Lecture on Bhagavad Gita, 01.26-27, London, 1973.
Pleasing The Lord
Even a small service performed with love & devotion pleases Lord Krishna.
Satisfying the Supreme Personality of Godhead
One does not need great wealth, education or opulence to satisfy the Supreme Personality of Godhead. If one is fully absorbed in love and ecstasy, he needs to offer only a flower and a little water.
Srimad-Bhagavatam 5.3.6,
Srila Prabhupada
Vrindavan consciousness
Most people worship God as their order supplier. But Vrindavan consciousness is simply to give pleasure to Krishna and to not expect anything in return except the opportunity to serve. And when we chant the holy names with this spirit, Krishna reveals himself in full.