Caitanya-caritāmṛta 23.5
śuddha-sattva-viśeṣātmā prema-sūryāṁśu-sāmya-bhāk rucibhiś citta-masṛṇya- kṛd asau bhāva ucyate
[shuddha-sattva-visheshaatmaa prema-sooryaamshu-saamya-bhaak ruchibhish chitta-masrinya- krid asau bhaava uchyate]
Blended reading (Sanskrit + English inline)
śuddha-sattva-viśeṣātmā prema-sūryāṁśu-sāmya-bhāk rucibhiś citta-masṛṇya- kṛd asau bhāva ucyate
“ ‘When devotional service is executed on the transcendental platform of pure goodness, it is like a sun-ray of love for Kṛṣṇa. At such a time, devotional service causes the heart to be softened by various tastes, and one is then situated in bhāva [emotion].’
Purport
This verse is found in the Bhakti-rasāmṛta-sindhu (1.3.1).
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io