Have you ever wondered why we often seek fulfillment in the world around us, yet feel an enduring emptiness? , one of the most influential thinkers in history, addressed this exact human crisis in his masterpiece, L'Alchimie du Bonheur .

The result of this transmutation is not material wealth, but Sa'ādat —eternal happiness and felicity. Ghazali asserts that true happiness does not lie in external circumstances, but in the purification of the self ( Tazkiyat an-Nafs ).