To all appearances they seemed debauchis; but the fact is that they were completely lost in meditation. They were hit by the dart of Divine knowledge in their heart. They were constantly reciting the name of Allah.
“It is from these two (Harut and Marut, the two fallen angels) that they learnt that by which they might separate a man from his wife.” (102, Al-Baqarah).
Note: It is possible that the poet may not be referring here to any specific individuals. He may be referring to the sect of ‘malamatyan’ whose policy is to conceal their devotion and piety to avoid to parade their good deeds and to hide nothing bad. Through ignorant people generally misjudge and reproach them. The latter draw inspiration from Hazrat Bayazid Bistami.

In appearance evil ones, but lost in contemplation,
Blade of true knowledge's search, stuck inn their veins,
Within their hearts they repeat dear Lord's name.

Debauch though they appear outwardly, but they are deep in mystic meditation,
The arrow of Divine instructions is struck in their hearts,
They recite the True Name in their hearts.

Constantly repeating the lesson of suffering they read the lesson of pain,
Holding tablet of meditation, they study in silence,
Only that page they peruse that reveals the Beloved.