love this manga. it really is like that but it's one of those things you don't understand until you experience it, and even after you experience it, it is so bizzare it doesn't necessarily stay with you.
like monks meditating or something, the sensation these people attain isn't anything you can even relate to, it's like seeing a new color or tasting a flavor that prior hasn't ever met your pallate. it's not good or bad, but it does invoke one's curiosity for what there is to life.