aviruddhān viruddhāṁś ca bhāvān yo vaśatāṁ nayan su-rājeva virājeta sa sthāyī bhāva ucyate sthāyī bhāvo 'tra sa proktaḥ śrī-kṛṣṇa-viṣayā ratiḥ

These moods (bhavas) bring under control the favorable ecstasies (such as laughing) and unfavorable ecstasies (such as anger). When these continue to remain as kings, they are called sthayi-bhava, or permanent ecstasies. Continuous ecstatic love for Krsna is called permanent ecstasy.