Emptiness, depressive personality
“In the depressive personality, emptiness functions as a kind of one step beyond loneliness. Not only is the loved object missed and longed for, but there is an internal void and a feeling of an incapacity for love. There may be a deeply felt sense of unworthiness that attributes the loss of the other to the person’s own badness (Kernberg, 1975); thus depressed persons come to feel that they do not deserve to be loved or appreciated. The therapeutic value of meditation for these people lies in the establishment of contact with a valued internal object through the concentration practices that release feelings of love, joy, contentment, and oneness. This is not a substitute for establishing intimate relationships, but it does reveal to depressed personalities that they are capable of feeling what they thought themselves incapable of. “
— “Psychotherapy without the Self: A Buddhist Perspective”, Dr. Mark Epstein M.D.