The Usefulness of Eastern Philosophy

When I look at Buddhists, the useful parts of Buddhism seem to have more to do almost with psychology. But in terms of the religion, it's hard for me to see offhand how that could actually inform a search for truth. Do you see the supernatural aspects of Eastern philosophy as having useful things we can glean from them and our ability to understand the world? What do you mean by "supernatural"? There isn't an ultimate source of an ultimate authority about what supernatural means.