Centering Prayer

[Slopeshoulder]

A few friends of mine have done retreats of this nature, one with Thomas Keating.

Has anyone checked this out or experienced it? I'd love to know your impressions and experience.

http://en.wikipedia.org/wiki/Centering_Prayer

(The wiki article leaves out a lot, such as eastern orthodox theosis, Rahner's existential theology, lectio dvina where the entire world is a text.)