I think as "westerners" we tend to get into that state most easily through intense physical effort. The only problem with that is our ability to maintain that effort
and the toll it takes on our body to get there.
Tai chi, and other related practices, will allow for one to remain there longer and quite likely make the body healthier over time (a long time!).
I like getting there both ways, yoga - gymnastics - OL all get me there a bit differently.