Yogi: When I sit I observe the breath but when I see the image of clouds, I think of the clouds.

Sayadaw: Don’t continue to look at the image, go back to the breath. Clouds are a concept; the mind creates the image.

If you continue to think of the image, the story continues to happen (and the mind is not present).

Go back to the body – breath, body sensations, sound, touch, or body temperature. (In this way, the mind can be present.)