Musar על סנהדרין 45:25

But the man who was completely purified from this affliction and has been cleansed of all trace of evil which lust leaves behind it, behold his vision will be perfectly clear and his discernment will be pure. He will not be swayed by any desire. He will recognize anything which is a sin. Even for the most minuscule, he will see its evil and will distance from it. On this our Sages referred regarding the men of Sheleimut (Wholeness) who purified their deeds to such a great extent as to leave not even a stirring of evil - "the clean minded men of Jerusalem" (Sanhedrin 23a).