Maybe it was literally something he wanted to do before he died
it must have been the happiest moment in his life
It was too overwhelming for him, to go from seeing practically nothing in his life ever, to seeing everything, thats a big step and it's certainly reasonable that he killed himself over it, think of how you don't know what something is and when it's explained to you you're like "Ooooh thats what that is..." for him it would be that billions of times over and it would get crazy to handle.