Obviously there is a vast intelligence behind all of life, and just as our eyes have eyelids to protect them, foreskins must serve a similar purpose. To answer this question it helps to know a little about the evolution of self-consciousness. Ever since the completion of our physical evolution, we have been evolving psychologically. Contrary to what many people believe, there is a purpose to this evolution and that purpose is to create a rational, critical, thinking human being who is capable of understanding both herself and her non-physical source. For it is only when we become fully aware of ourselves as individuals that we can truly become co-creators with God, or the larger consciousness.
Fear is a natural consequence of becoming self-conscious.
We must think for ourselves, and sometimes that's frightening. Before we developed a self-consciousness, we were more like the animals. But without a strong sense of self, we were limited emotionally, spiritually, physically, and psychologically. Fear is a natural consequence of becoming self-conscious. We fear ourselves, our world, and the non-physical source we are slowly becoming distanced from.