The Holy Quran has a form and a meaning; this feature is one of the reasons of Quran’s eternality according to which the public people cannot have a full understanding of its reality and secrets. The verses pointing to this reality are verses 77-79 of Al-Waqi’a being called “Mass” verses. Investigating the commentary resources of Fariqain shows that there is a deep relation between the verses ‘Mas’ and ‘Tathir’. The results of the study indicate that a regular jurisprudential inference of the verse ‘Mas’ i.e. forbidden touch of the Holy Quran’s verses without Taharat is void of a strong reason. In accordance with this verse, the real commentators are those who have been in contact with divine verses with their pure existence and have reached the degree of innocence. Therefore, enjoying a pure conscience and having moved effectively in the path of journey toward God and having achieved an amount of appearance and conscience purity, they have had advantages from that source of reality to the extent of their existence capacity, spiritual greatness and conscience purity and they make it available for other people.