Spiritual Practice: Acts of Worship and the Cure of the Heart

Following the four foundational knowledges, Kimiya-yi Sa'adat presents a comprehensive practical program for the transformation of the soul through Islamic worship and ethical development. Al-Ghazali organizes this practical program around the major acts of worship, the ethics of social interaction, the cure of the heart's diseases, and the cultivation of the heart's virtues — covering the same four-part structure as the Ihya but in condensed and more accessible form.

Al-Ghazali's treatment of the acts of worship — prayer, zakah, fasting, and pilgrimage — emphasizes their inner spiritual dimensions alongside their legal requirements. For prayer, he presents a detailed account of what genuine khushu (humility and presence) looks like in each element of the salah — the standing before Allah, the recitation, the bowing, and the prostration — and what a believer can do to cultivate this quality in his own practice. The prayer that satisfies only its legal minimum while the mind wanders through daily concerns does not nourish the heart as it should; the prayer performed with genuine awareness of standing before Allah is the prayer that produces the spiritual transformation the salah is designed to bring.

The sections on social ethics address eating, marriage, livelihood, travel, commanding good and forbidding evil, and the proper management of relationships with different categories of people. Al-Ghazali consistently shows how each domain of daily activity can be approached either as spiritual practice or as mere routine — the difference lies in intention, awareness, and the deliberate orientation of each activity toward Allah.

The sections on heart diseases — covering greed, the love of worldly status, anger, envy, and pride — present both precise diagnoses and practical remedies in the style of spiritual medicine that al-Ghazali developed throughout his works. The Persian language allows al-Ghazali to use more vivid, emotionally resonant language than the formal Arabic of the Ihya, and these sections of the Kimiya are widely considered among the most affecting in the entire al-Ghazali corpus.