meaning
The Portuguese term “saudade,” which is a deep, rooted longing for something/someone that is absent
is a deep emotional state of nostalgic or profound melancholic longing for something or someone that one cares for, or loves. Moreover, it often carries a repressed knowledge that the object of longing might never be had again. It is the recollection of feelings, experiences, places, or events that once brought excitement, pleasure, and well-being, which now trigger the senses and make one experience the pain of separation from those joyous sensations. Saudade describes a feeling both happy and sad, and is approximated in English by the word bittersweet.
A stronger form of saudade may be felt towards people and things whose whereabouts are unknown, such as old ways and sayings; a lost lover who is sadly missed; a faraway place where one was raised; loved ones who have died; feelings and stimuli one used to have; and the faded, yet golden memories of youth. Although it relates to feelings of melancholy and fond memories of things/people/days gone by, it can be a rush of sadness coupled with a paradoxical joy derived from acceptance of fate and the hope of recovering or substituting what is lost by something that will either fill in the void or provide consolation.
https://en.wikipedia.org/wiki/Saudade#Related_words
music
The Good Son, a 1990 album by Nick Cave and the Bad Seeds,