tara madhye chaya vatsara bhakta-gana-sange
prema-bhakti pravartaila nrtya-gita-range
tara madhye—within that period; chaya vatsara—for six years; bhakta-gana-sange—with all the devotees; prema-bhakti—the loving service of the Lord; pravartaila—introduced; nrtya-gita-range—in the matter of chanting and dancing.
Of these eighteen years at Jagannatha Puri, Sri Caitanya Mahaprabhu spent six years with His many devotees. By chanting and dancing, He introduced the loving service of the Lord.
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