Albert Einstein wrote this quote. Given that he was a scientist, he found the world of religion beautiful. The mystery of life. Almost every religion out there contradicts itself but still believes in something so supernatural that they have come to rule the universe. It is a reflection of the universe which we cannot perceive. The beautiful mystery not only is the world of religion but the very structure of it. Even as a scientist – someone who believed that the world may be more functional scientifically rather than being controlled by the religious beliefs of people – if you can't stand in awe and wonder at the mystery of life, then you are in a position of great danger as you live a life you don't even wonder about. "His eyes are closed", meaning he is walking blindly through life not trying to understand the beautiful mystery of life that comes with living it.
Hope that helped. If you want to change some of the words to make it sound more grade 6 level, you are welcome to do so.
