How big is the Universe?

As a teenager wondering how big is the universe? Where does all begin and where does it end?  Overwhelming and a bit scary all these thoughts... Where does all the universal energy come from? Are we supposed to understand everything logically? Don't think so... to find the space beyond thinking and let the intuition express itself, that's magic! Let go of thinking... This artwork came to her by experimenting different techniques and  was finished after a lot of petitess...