A scientific analysis of the various stages of advancement, i.e. from the birth of bhakti to sraddha, guru-padasraya to nistha, ruci, asakti upto prema, that one ascends while on the devotional path, done in 8 showers (i.e. chapters). There is no precedent or parallels to this work of Srila Visvanatha Cakravarti Thakura. A must read book for those who are curious to know about the growth, symptom and subtleties of bhakti.
hare kṛṣṇa hare kṛṣṇakṛṣṇa kṛṣṇa hare harehare rāma hare rāmarāma rāma hare hare