ei-mate - in this way; vaiṣṇava saba - all the Vaiṣṇavas; nīlācale āilā - came to Nīlācala; daive - by chance; jagannāthera - of Lord Jagannātha; se dina - that day; jala-līlā - pastimes in the water.

Thus all the Vaiṣṇavas from Bengal went to Jagannātha Purī. By chance, they arrived on the day when Lord Jagannātha performs pastimes in the water.