Aikido and Taoism have taught me a lot about the power of harmonizing with the momentum of what is around you and within you and selectively adding to or redirecting that.
Both also emphasize being centered and grounded; having a place to stand, with a relaxed -- even amused -- but alert mentality.
That said, training and discipline are clearly useful, when that they allow you to take "right actions" without spending mental energy. I suspect that each person differs in which patterns can be trained -- delegated -- into the subconsious level, and which things will always require conscious effort.
cross-posted from another thread