Without paying attention, eating salad greens often seems a chore.
The resistance to do so grows as one grows tired. The greens don't taste great, and their texture is grassy. One seeks salt and sugar. And starchy textures.
But when one is afforded attention, through a clear head, and one directs one's attention to the greens and to the body, one can feel the greens work.
When they work, one feels: "ah, these are friends."
It raises affinity for the greens, and lowers resistance to eating them.