Inquiry: Using questions - varoius methods

The Work of Byron Katie: the four questions

http://www.oprah.com/spirit/Testing-the-Work-of-Byron-Katie

Most recent article from Stuart Lachs -- on a particular form of Chinese / Korean Zen form of practice that uses questions, but somewhat different than the koan system of Rinzai

The Hua Tou Practice: Perspective and Examples of an ancient and potent Chinese Chan practice
- an interview with Stuart Lachs from Nonduality Magazine

http://lachs.inter-link.com/docs/TheHuaTouPractice-Lachs.pdf

"Who am I?" - the inquiry process from Ramana Maharshi

http://www.angelfire.com/space2/light11/diction/ramana.html#1

From Raphael Cushnir:

http://www.oprah.com/spirit/Two-Questions-That-Could-Change-Your-Life

A short video talk from Shinzen Young, a Zen / Buddhist teacher on how self-inquiry relates to mindfulness meditation:

https://youtu.be/pHUajtPXPDw

Meditative Self-Inquiry - guided meditation from Adyashanti

https://youtu.be/lCrWn_NueUg