I recently started meditating, using the method in "Mindfulness in Plain English". So far, I've been able to meditate for between 1 to 3 hours at a time, every day. I do feel quite a bit of calm afterwards and during the deep parts of the meditation, and have also experienced some occasional hallucinations (like a feeling of intense bliss, like my arms are floating, like my chest is a hundred feet from my head) when…
So for example, once you reach access concentration on breathing, you can see hone in on the specific physical sensations and try to find any part of it that is actually "permanent". You're looking for the transience of not only the inhale and the exhale, but also the transience of what appears to be solid neural signals are actually high-frequency sensations. Go deeper, and you start observing how these sensations trigger other, in kind of a cascade effect -- exactly what was mentioned in Chuang-Tzu on the wind blowing through the openings of the world.
I point this out because it's not that the teachings lead you to the practice, but rather, the teachings come from the practice. You are essentially "reverse engineering" the teaching with your personal practice. When I look around, I see how teachings from around the world derive from the insights realized (experienced) in practice. And since the practice is "experience reality, all of reality", then of course there is a commonality.
Heh, having said that, some teachings are easier to absorb than others, depending on where you think you are and who you think you are. I guess I want to leave open the possibility, to not to have strong attachment to the specific teachings themselves when you practice.