In my former posting I promised to find Nabokov's comments on "Sehnsucht" or "Saudades":
On page 69 of VN's Don Quixote we read:
“The wretched sense of poverty mingles with his general dejection
and he finally goes to bed, moody and heavy-hearted. Is it only Sancho´s absence and the
burst threads of his stockings that induce this sadness, this Spanish