caitanyera avatāre ei mukhya hetu
bhaktera icchāya avatare dharma-setu
caitanyera—of Lord Caitanya Mahāprabhu; avatāre—in the incarnation; ei—this; mukhya—principal; hetu—cause; bhaktera—of the devotee; icchāya—by the desire; avatare—He descends; dharma-setu—protector of religion.
Therefore the principal reason for Śrī Caitanya's descent is this appeal by Advaita Ācārya. The Lord, the protector of religion, appears by the desire of His devotee.
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