It helps to find yourself in others, in the ways they think of you, in the ways they think of themselves, in their behavior, in their hopes for you.
It's easy to see this is true in something like psychotherapy where you can get a carefully reflected image of yourself and an expanded view of yourself.
How about in literature as well? Haven't you had the experience of finding yourself or at least substantial parts of yourself in a character? Were you shocked? Did you resist? Or did you go with it? What did the experience of giving yourself over to your identification with this other character do for you?
What would you say to the idea of finding yourself in others as a way to help you diet and lose weight? What if you gave yourself over to a process by which you would share in such a new direction with others? Isn't this the intention, after all, of various exercise and weight loss programs like Curves and Weight Watchers - women moving along together, all sharing the same intention, seeing themselves in each other?
As you can see, losing weight is not all pounds and food; it's changing your image; it's changing yourself. It's finding yourself in the eyes, in the thoughts, and in the likes of others.