Deal with optional acts of worship as if they are obligatory ..

Abu Al-Hasan Ali bin Ahmad said:

“Deal with optional acts of worship as if they are obligatory, and acts of disobedience as if they are kufr (disbelief), and your desires as if they are poison, and socializing with the people as if it were fire, and nurturing of your soul as if it were medicine.”

Khilasat Al-Athaar, 3/401