This document discusses key Quranic terms including: - Tawooz and the importance of Bismillah and Surah Fatiha. - Definitions of Illah, Rabb, Ibadah, and Deen. Illah refers to God, Rabb refers to sustainer and nourisher, Ibadah refers to worship and submission, and Deen refers to a complete way of life under God's authority. - Ibadah encompasses worship, bondage, obedience, and total submission and slavery to God's authority. Deen includes sovereignty, obedience, the system of thought and action from God's authority, and retribution.