The very fact of our existence is a miracle that causes surprise even the greatest minds. For primordial self-organizing matter is impossible, and hence it spontaneously acquired this self-organizing property which led to the emergence of the Universe followed by the birth of life on planet Earth and the formation of Homo sapiens.
Matter is any physical entity. Matter that has a self-organizing property differs from that which does not, in that this very property enables it to undergo qualitative evolution and, in time, lead to the birth of intelligent beings.
The beginning of time, and consequently the universe — the moment when self-organizing matter spontaneously originated: either it acquired this property that it previously did not possess, or it appeared from the absolute Nothing, if such a thing is possible in principle.
The complex anatomy of humans makes it tempting to think that its random origin is impossible. But it turns out that chaotic and purposeless matter, possessing self-organizing property is capable of forming quite intricate phenomena over time.
The universe exists just so, by itself. Its inherent self-organizing property, capable of forming organisms and intellect, does not mean that it has a predetermined purpose. This causeless and purposeless property and without it, intelligent beings would not have emerged, asking questions.