ratha-yātrā - the car festival; dekhi' - seeing; tāhāṅ - there; rahilā - remained; cāri-māsa - four months; prabhu-saṅge - with the Lord; nṛtya-gīta - chanting and dancing; parama - greatest; ullāsa - pleasure.

After attending the Ratha-yātrā ceremony at Jagannātha Purī, all the devotees remained there for four months, greatly enjoying the company of Śrī Caitanya Mahāprabhu by performing kīrtana [chanting and dancing].