Proper mindfulness technique: Not judging what you see, stake out your inner experience

I like this description of the proper mindfulness technique:

“Not judging what you see, not considering it good or bad, just seeing what you see, with interest ... staking out your inner experience, like a wildlife photographer in an exotic location, waiting for the moment to snap.”

I don’t know who the speaker is, but I heard that on a Buddhify recording.

~ a note from April 9, 2015