Do the powers other characters have in Legion represent anything?

As the last scene of Season 1 Episode 5 in Legion

we see that none of the events of the show are real, and that all the characters are members of the group therapy session. If what we see in that scene is reality and the entire show takes place in Sydney's imagination, can we interpret that these patients inspire the story?

Up to that point we see the characters having mutant powers. Are any of these powers foreshadowing the alternate truth? Do they represent any kinds of specific mental disorders?

Are there other events related to powers in the show, for instance the zone of silence, that specifically are there to represent a mental disorder or a mechanism of therapy?

Best Answer

That's not the end of the show; there are 3 more episodes for the first season. The phrase "A Play, in 5 Acts" is just a mild joke relating to how theatrical performances are usually described, it doesn't literally mean 5 episodes.

The scene you're talking about is itself most likely a hallucination. Remember, David and Syd were in his astral plane space but the demon was attacking Syd. It's not clear if the hallucination is David or the demon's doing, but given the identity of the "doctor", it's most likely some kind of prison.

Having said that, it's also true that many of the character's powers do represent different kinds of psychological disorders or related issues. David's power is obvious and the connection to mental illness is made explicitly in the show. But these other powers also seem to have some psychological aspect to them:

Sydney's power means that she has an extreme phobia to human contact, which is called "Haphephobia"
Cary and Kerry's power can be interpreted as symbolic of manic depression: Cary is a calm, almost morose person who has a hyperactive, violent second person literally living inside him.
The Eye, who's power we're still guessing at, seems to be able to make people hallucinate.
Ptonomy's power involves memory recall, which is a common psychiatric treatment technique. (Ptonomy himself also has eidetic memory.)