Suddha-sattva-visesatma means
Sri Caitanya-caritamrta
CC Madhya-lila
The word śuddha-sattva-viśeṣātmā means "situated on the transcendental platform of pure goodness."
CC Madhya 23.6, Translation and Purport: “Bhāva (emotion) has two different symptoms—constitutional and marginal. Now, My dear Sanātana, listen to the symptoms of love.
The word śuddha-sattva-viśeṣātmā means "situated on the transcendental platform of pure goodness." In this way the soul is purified of all material contamination, and this position is called svarūpa-lakṣaṇa, the constitutional symptom of bhāva, emotion. By various tastes, one's heart is softened, and there is an awakening of one's loving propensity to render spontaneous service to the Lord. This is called taṭastha-lakṣaṇa, the marginal symptom of bhāva.