Cowboy Bebop
Few works of art have managed to capture the feeling of "wandering aimlessly in the world, trying to find a purpose in life or at least people to carry that weight with you" quite as well as Cowboy Bebop, a phenomenal show with some of the finest character arcs, emotional endings, & use of music that i've seen in any form of media.
I guess at the end of the day we're all just ghosts drifting through the daily motions of life clinging to the few things that make life worth it.
See you space cowboy..