CC Madhya 11.215

cāri-dike cāri sampradāya karena kīrtana
madhye nṛtya kare prabhu śacīra nandana
Synonyms: 
cāri-dike — in the four directions; cāri — four; sampradāya — groups; karena — performed; kīrtana — congregational chanting; madhye — in the middle; nṛtya kare — dances; prabhu — Śrī Caitanya Mahāprabhu; śacīra nandana — the son of mother Śacī.
Translation: 
Four parties were then distributed in four directions to perform saṅkīrtana, and in the middle of them the Lord Himself, known as the son of mother Śacī, began to dance.