From Kabat-Zinn's Heartscape
"Drinking in the experience that you are unequivocally and unconditionally loved and accepted just as you are, without having to be different, without having to be worthy of their love, without having to be particularly deserving. In fact you may not feel particularly worthy or deserving, but that does not matter. It is in fact irrelevant. The relevant fact is that you were or are loved. Their love is for you, just as you are. For who you are now, already, and perhaps always have been. Allowing your heart to bask in these feelings, to be cradled in them, to be entrained into them. To be rocked moment by moment in the swinging, rhythmic beating of the loving heart of another. And in the cadences of your own breathing, allowing your heart to be held and bathed in this way by the warmth of this radiant pulsating field of loving kindness"
See if you can imagine someone treating you this way. And imagining with great vividness the feelings of love and kindness and regard. That can actually serve equally well.in this practice.