It is the only worldview, contemplative horizon, and order of life that will suffice for the needs of all humanity until the end of time, without the need for any other ideology, religion, or worldview.
Magnificent Islamic principles are necessary for the peace and happiness of all humanity. Seeking happiness in this world and the afterlife according to other worldviews is analogous to the situation of a poor beggar unaware that he is sitting on a treasure who is hungry and helpless and extends his hand to others.