Our discussion here is not a practice but common knowledge that practitioners must know. It is my view that not every practitioner needs to learn the Five Great Treatises or all the tantras because some parts of this massive body of works are not that useful for actual practice; they only serve as additional knowledge. But as a practitioner, one should at least have the knowledge pertinent to one’s own practice.

~Depicted from GATEWAY TO VAJRAYANA PATH - Sutra and Tantra: Similarities and Differences--based on the view of Rongzom Pandita