Atheists lack a belief in deities, nothing more, nothing less.Atheists reason for being are the same as ants ! they live, they eat , they breed and then they die ! Nothing more exists beyond there own ant nest because there is no need for anything else to exist outside their own comfort zone and being ! This existence exists only because they exist ! If only man had the mind of an ant then we could all be happy just existing and having so much comfort in that belief that we need not think any further :)
That you need it to be something different, says more about you than it does atheists.