The Qur'an says, 'There is a watcher within, ever present' (50:18). You can activate a connection with this sacred light of self-witnessing. Gently touch your heart and make a prayerful intention to continuously be aware of your heart. If your attention strays, touch your heart again to remind yourself. This repeated focus on the heart activates a mysterious light of compassionate self-witnessing.
— Jamal Rahman in Spiritual Gems of Islam