The more we are happy in Krishna Consciousness the more we become purified.
Actual joy is a product of the spiritual nature. It spontaneously manifests when the living entity begins to love God.
Perform devotional service joyfully. This is an enjoyable process.
Material joy has two problems. It makes one insensitive and irresponsible. But Spiritual joy makes one super sensitive and supper responsible.
Highest pleasure is the pleasure of love.
All devotional expressions – be they japa, harinama sankirtana, preaching, studying, serving guru, cooking for Sri Krishna, or any seva should be done with enthusiasm. Enthusiasm and Joy is the key to bhava and prema.