Around the 30-minute mark, viewers get their first peek at the "lost souls," or people who are unable to let go of their lives on earth. Big, dark, fast-moving fellows with one eyeball and tentacles, lost souls can be a little scary at first for young viewers.
Moonwind (voiced by Graham Norton), who is Joe and 22's adorable hippie guide in the after-life and a member of "mystics without borders," explained that lost souls are "people who can't let go of their own anxieties and obsessions." While the first example we see is that of an overstressed hedgefund manager (ha!), they crop up again later in the movie but aren't nearly as frightening.