Dhammacakkhu

The ability to see the arising and the cessation of things is called the eye of truth. The ∂hammacakkapavattanasutta of SN says the following.

“îmasmiM ca pana veyyAkaraNasmiM bhaJjamAne Ayasmato kondaJJassa virajaM vItamalaM dhammacakkhuM udapAdi yaM kiJci samudaya dhammaM sabbaM taM nirodha dhammanti.”

=When this analysis was made the eye of Dhamma freed from dust and stain as whatever is of the nature of arising all they are of the nature of ceasing.”

A special kind of understanding is meant by the term ∂hammacakkhu here