Śrīla Rūpa Gosvāmī remarks that when various symptoms become manifest very prominently, the devotee's condition can be called the brightest. For example, a friend of Kṛṣṇa addressed Him as follows: "My dear Pītāmbara, because of separation from You all the residents of Goloka Vṛndāvana are perspiring. They are lamenting with different words, and their eyes have become moistened with tears. Actually, all of them are in great confusion."
There is a supreme symptom of ecstatic love which is called mahābhāva. This mahābhāva expression was possible only in Rādhārāṇī, but later on when Śrī Kṛṣṇa Caitanya appeared to feel the mode of love of Rādhārāṇī, He also expressed all of the symptoms of mahābhāva. Śrī Rūpa Gosvāmī says in this connection that when the symptoms of ecstatic love become the most bright, that stage is accepted as mahābhāva.
Śrīla Rūpa Gosvāmī further analyzes the ecstatic loving expression into four divisions which are called sāttvābhāsā.
Sometimes impersonalists who are not actually in devotional service may also exhibit such symptoms of ecstatic love, but this is not accepted as actual ecstasy. It is a reflection only. For example, sometimes in Vārāṇasī, a holy city for impersonalist scholars, there may be seen a sannyāsī crying from hearing the glories of the Lord. Impersonalists also sometimes chant the Hare Kṛṣṇa mantra and dance, but their aim is not to serve the Lord. It is to become one with the Lord and merge into His existence. Rūpa Gosvāmī therefore says that even if the reactions to chanting are manifested in the impersonalist's body, they should not be considered to be symptoms of actual attachment, but reflections only, just like the sun reflected in a dark room through some polished glass. The chanting of Hare Kṛṣṇa, however, is so nice and transcendental that it will eventually melt even the hearts of persons who are impersonalists. Rūpa Gosvāmī says that the impersonalists' symptoms are simply reflections of ecstatic love, not the real thing.