One verse

Srimad Bhagavatam 11.29.11

11.29.11

पृथक् सत्रेण वा मह्यं पर्वयात्रामहोत्सवान् । कारयेद् गीतनृत्याद्यैर्महाराजविभूतिभि: ॥ ११ ॥

pṛthak satreṇa vā mahyaṁ parva-yātrā-mahotsavān kārayed gīta-nṛtyādyair mahārāja-vibhūtibhiḥ

pṛthak
alone
satreṇa
in assembly
vā
or
mahyam
for Me
parva
monthly observances, such as Ekādaśī
yātrā
special gatherings
mahā-utsavān
and festivals
kārayet
one should arrange to perform
gīta
with singing
nṛtya-ādyaiḥ
dancing and so on
mahā-rāja
royal
vibhūtibhiḥ
with signs of opulence

Either alone or in public gatherings, with singing, dancing and other exhibitions of royal opulence, one should arrange to celebrate those holy days, ceremonies and festivals set aside specially for My worship.