I just realized today, my tag-along-in-life-question How does this serve me? has the same outcome as Byron Katie’s The Work:

Is it true?
Can you absolutely know it’s true?
How do you react, what happens, when you believe that thought?
Who would you be without this thought?

It doesn’t matter what question you ask yourself, or what practice you implement, for you to be able to get to that space in-between, the space where magic happens.
But don’t stop until you find what works for you.

Have you?