In Hujwiri's Kashf al-Mahjub, Ali ibn al-Husayn (Zayn al-Abidin) is asked who is the most blessed person of this world and the hereafter. He answers: the one whose pleasure, when pleased, does not carry them into falsehood (batil), and whose anger, when angered, does not take them out of the truth (haqq).

Hujwiri glosses this as a sign of the perfection of the upright (mustaqiman): consenting to falsehood is itself falsehood, and letting go of the truth in a moment of anger is likewise falsehood. Because the believer (mu'min) is never a falsifier (mubtil), the two extreme emotional states — satisfaction and wrath — must both remain anchored to the truth. This makes steadfast fidelity to haqq, independent of one's shifting inner state, the measure of true blessedness.