Imagine the nothingness there was before the universe existed. If there was nothing to start with then how did the universe begin? What is nothing?
Think about this the next time you're drunk
Also, think about why there is anything, indeed. It would make infinitely more sense for there to be nothing... no existence, no consciousness, no us, no time, no space, nothing... why is there anything? Think about that for a while and it'll give you a headache.