‘Arifbillah Shaykh Dr Abdul-Hayy ‘Arifi (may allah have mercy on him) said;

To slip and commit mistakes is inherent human nature.

If the mistakes were not there spiritual progress would not be possible.

However, to avoid them (in first place) and become aware of them (if committed) prominent scholars and sufis established a relationship for self-reformation (islahi t’aluq) with the friends of Allah  (ahlulAllah) and abandoned ascribing any self perfection.

Malfozat-e-‘Arifi ra page 61