dhīre dhīre - slowly, slowly; jagannātha - Lord Jagannātha; karena - does; gamana - movement; āge - in front; nṛtya - dancing; kari' - performing; calena - goes forward; śacīra nandana - the son of mother Śacī.

The car of Lord Jagannātha began to move slowly while the son of mother Śacī went ahead and danced in front.