Dancing is very good. The more you dance, the more you become light; means the burden of material contamination becomes reduced. Dancing is so nice. Even if you don't feel ecstasy, if you dance by force, that will also help us. Krsnot-kirtana-gana-nartanau-parau premamrtambho-nidhi. By dancing, dancing, we shall develop our dormant Krsna consciousness, love for Krsna.
This is a nice process. Krsnot-kirtana-gana-nartana-parau premamrtambho-nidhi. Then you will merge into the ocean of love for Krsna. So this is the highest stage of ecstasy for Krsna consciousness, always chanting Krsna's name, dancing in ecstasy, and to be merged in the ocean of love for Krsna. These are the perfection.
From Srila Prabhupada's lecture on The Nectar of Devotion — January 8, 1973, Bombay