Hello Wilhelmus,
I enjoyed your essay very much but am myself on the fence when it comes to the role of consciousness in the universe. I am suspicious of us projecting our own unique subjectivity onto the whole of existence. Though, I do think it can be said that a universe without some form of life within it to provide "feedback" can in someway be said to not exist at all.
The question of why there is something rather than nothing I find a fascinating one as I do the question of whether we exist in the best of all possible worlds.
I'd be interested in your thoughts on a post I recently wrote on that subject:
http://utopiaordystopia.com/2014/05/04/why-does-the-world-exist-and-other-dangerous-questions-for-insomniacs/
Rick