Sarva-samvadini is a supplement to the Ṣaṭ Sandarbha of Śrī Jīva Gosvāmī. In this book, Śrī Jīva Gosvāmī adds extra information on certain topics discussed in the Sandarbhas. It is in this book that he names the philosophy and theology of Śrī Caitanya Vaiṣṇavism as Acintya-bheda-abheda. The language of the book, however, is highly philosophical. Paṇḍita Ānanda Gopāla Dāsa of Jīva Institute has written a lucid commentary on it in Sanskrit. This is the maiden commentary on this important work. It is a must for those who really want to dive deep into the siddhānta of Caitanya school.
What is the difference between human beings and animals? Discipline is the only thing that differentiates the two. And a disciple is called a disciple because he should follow the Guru with discipline. A disciple lacks mental discipline when he thinks that he knows something more than the Guru and talks back to him, tries to teach him something, or tells him the error of his ways.