that ain't what I'm saying. heck, you're proving the point. you don't need an underlying sense, if you're ignorant, but once you see the world, know what it's like, a smart person will try to look for one. isn't that what intelligent people do? look for how and why stuff works? the thing is, there is none. so one either makes up his own, which is hard or has to live in belief that it is all for nothing.
one needs a purpose. either that, or they choose to ignore it, to lose their awareness of that issue, to live in what we also call ignorance.