śrī-caitanya--sei kṛṣṇa, nityānanda--rāma
nityānanda pūrṇa kare caitanyera kāma
śrī-caitanya—Lord Śrī Caitanya; sei kṛṣṇa—that original Kṛṣṇa; nityānanda—Lord Nityānanda; rāma—Balarāma; nityānanda—Lord Nityānanda; pūrṇa kare—fulfills; caitanyera kāma—all the desires of Lord Śrī Caitanya Mahāprabhu.
Lord Caitanya is the same Lord Kṛṣṇa, and Lord Nityānanda is Lord Balarāma. Lord Nityānanda fulfills all of Lord Caitanya's desires.
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