The total religion called Islam may be said to consist of the levels of islam, iman, and ihsan, or surrender, faith, and spiritual beauty. The Quran … - Hossein Nasr

The testimony of the faith L¯a il¯aha illa’Ll¯ah (There is no divinity but the Divine) is a statement concerning knowledge, not sentiments or the will. It contains the quintessence of metaphysical knowledge concerning the Principle and its manifestation. The Prophet of Islam has said, “Say L¯a il¯aha illa’Ll¯ah and be delivered” referring directly to the sacramental quality of principial knowledge.

There is something "God-like" in man as attested to by the Quranic statement, (Pickthall translation): "I have made him and have breathed into him my spirit" (Quran 15:29), and by the tradition, "God created Adam upon His own form." God created Adam, the prototype of man, upon "His own form," i.e., as a mirror reflecting in a central and conscious manner His Names and Qualities. There is, therefore, something of a "sacred nature" (malakut'i) in man; and it is in the light of this profound nature in man that Islam envisages him. This belief is not, however, in any way anthropomorphic, for the Divine Essence (al-Dhat) remains absolutely transcendent and no religion has emphasized the transcendent aspect of God more than Islam. The Islamic concept of man as a theomorphic being is not an anthropomorphism. It does not make God into man. Rather, the Islamic revelation conceives of man as this theomorphic being and addresses itself to that something in man which is in the "form of the Divine." That something is first of all an intelligence that can discern between the true and the false or the real and the illusory and is naturally led to Unity or tawhid.

The heart is first of all the center of our being on all the different levels of our existence, not only the corporeal and emotive, but also the intellectual and spiritual. It is what connects the individual to the supra-individual realms of being. In fact, if in modern society heart-knowledge is rejected, it is because modernism refuses to see man beyond his individual level of existence. The heart is not a center of our being; it is the supreme center, its uniqueness resulting from the metaphysical principle that for any specific realm of manifestation there must exist a principle of unity. The heart is the barzakh or isthmus between this world and the next, between the visible and invisible worlds, between the human realm and the realm of the Spirit, between the horizontal and vertical dimensions of existence. In the same way that the vertical and horizontal lines of the cross, itself the symbol not only of Christ in Christianity but also of the Universal Man (al-insan al-kamil) in Islam, meet at only one point, there can be only one heart for each human being, although this single reality partakes of gradations and levels of being. The heart, then, is our unique center, the place where the supreme axis penetrates our microcosmic existence, the place where the All-Merciful resides, and also the locus for the Breath of God. Hence the profound relation that exists between invocatory prayer carried out with the breath and the heart.