SB 11.27.44
upagayan grnan nrtyan
karmany abhinayan mama
mat-kathah sravayan srnvan
muhurtam ksaniko bhavet
Translation:
Singing along with others, chanting loudly and dancing, acting out My transcendental pastimes, and hearing and telling stories about Me, the devotee should for some time absorb himself in such festivity.
Purport:
A devotee engaged in regulative worship of the Supreme Lord should sometimes become ecstatically absorbed in chanting and hearing the pastimes of the Lord, dancing, and
other festivities. The word muhurtam, “for some time,” indicates that a devotee should be careful not to neglect his regulative principles and service to the Lord in the name of so-called ecstasy. Although one may be ecstatically engaged in chanting, hearing and dancing, he cannot give up the formality of regulated service to the Lord.