Aqeedah and monotheism are important concepts in Islam and form the basis of religious beliefs. Let's explain their meaning: Creed: means belief and belief in religious beliefs, spiritual principles, and fundamental beliefs that are part of a religion. Doctrine relates to unseen matters that humans cannot verify with ordinary senses, such as belief in God, angels, heavenly books, prophets, and the Last Day. Monotheism: It means that a person believes in the Oneness of God and that there is no god but God. Monotheism is one of the most important concepts in Islam and is considered the foundation of the Islamic faith. It is believed that God is the Creator, Sustainer, and Ruler of the universe, and that He has no partner or peer.