vasi'-sitting down; bhaṭṭācārya—Sārvabhauma Bhaṭṭācārya; mane—in his mind; karena—does; vicāra—consideration; ei—this; kṛṣṇa-mahā-premera—of ecstatic love for Kṛṣṇa; sāttvika—transcendental; vikāra—transformation.