Nutty, I agree. I tend to self-describe as a spiritual vagabond. I think that if there's a greater cosmic plan to all this, or some higher power who's pulling all the strings, he/she/it is far too sophisticated for our humble minds to fully understand. However, I'm open to the possibility that some of us have grasped (different) little pieces of the puzzle, even if none of us have ever come close to grasping the whole thing.
I really never understood those types who say things like I decided a long time ago that all religions are wrong and religion in general is bullshit, because they all contradict each other. This kind of a statement carries the implicit assumption that the Ultimate Reality that religion and spirituality reach for is something that can be clearly understood by any human mind, and whose properties can be encapsulated well in precise human language (and/or mathematical symbols), just like the familiar phenomena of our material world. In other words, this statement carries the assumption that anything supernatural must necessarily abide by the same physical laws as everything else we've encountered and come to understand. I find people who draw conclusions like this are pretty staunchly concrete thinkers, who have trouble even imagining whole segments of reality, hidden from us but affecting us profoundly, where very basic things we take for granted don't hold true. I never really related to folks who consider such exercises of imagination complete wastes of time. If you're a person who only has truck with what's known, provable, and demonstrably germane to your life in the here and now, that's fine. But don't expect the same from me, because that's a matter of taste.
I agree with what you're saying with regards to cultural values as well. I think there's much of value in making forays into cultures with values and practices very different from the one you were raised in. I've done that myself, and what I've come away with is this: All people really do yearn for the same things in life. Our differences in how we end up living and relating to other people merely represent differences in what yearnings take priority over what others, since none of us have the resources to pursue them all with equal passion.