This might sound funny, but I have no idea what you folks are talking about.
Who on earth were you worshipping? I've never had an emotional high or felt comforted by "knowing God was there."
I never believed, ever, that G-d owed it to me to answer my prayers.
In fact, my relationship with G-d, especially now, is often very silent, dark, bumpy, and occasionally a struggle.
Sometimes there's what turns out to be the equivalent of an argument, with more question marks than acknowledging nods from both parties.
It's not that I don't feel some sort of something there, but I would never say that whatever it is that it puts my mind at ease. It's highly complex, as intellectually honest as it is transcendent of any logic. It is a sweetness that produces nausea, an understanding that leaves me guessing, and a cold, lonely darkness that inspires with hope.
It's like being in love with somebody. They are just as irritating and grinding on you as they are important to your heart.
Now I am not saying you need to worship my Deity or take up my religion or even believe in G-d. No, not at all.
But even when I was among Jehovah's Witnesses I never understood "God" like others seemed to. I still don't understand G-d on any level, and yet I have full grasp at the same time.
He chases me down yet I am always after him. Worshipping him is full of happiness and sorrow making complete sense and none at all. It is all that makes up life, it's confusion, it's satisfaction, it's emptiness, it's fulfillment.
Prayer is not even words sometimes. There is very little asking of G-d. There is a lot asked from G-d. I find myself here when he is not, and he finds he just missed me and will have to try again.
Being with G-d is good and bad, ugly and beautiful, just like life is, all of it. But if I ever said I didn't need G-d, I would not miss comfort or someone I felt was there obliged to help or grant my wishes like a genie. I don't know this in my experiences.
And I am not trying to be condescending. I really cannot relate. If that was all there was to G-d, I'd reject G-d too.