not very clear what to do after the brain puzzle.

[lisa fullmer]

I completed the brain puzzle thinking Thorn would be behind it. instead was a rock. Now it won't let me leave, which means I'm supposed to do something........ But What? I'm running in circles looking for a clue. what am I missing?

[Dude]

get the waking mind

[Lani]

The brain puzzle unlocks some lore information but no physical reward no.
You can leave.
You just need to remember you can jump.

[lisa fullmer]

I've tried jumping . It tells me not enough space available

[アンジェル]

Originally posted by lisa fullmer:

not very clear what to do after the brain puzzle.
I completed the brain puzzle thinking Thorn would be behind it. instead was a rock. Now it won't let me leave, which means I'm supposed to do something........ But What? I'm running in circles looking for a clue. what am I missing?

There is a special sword you can find and the mind, which grants you a passive bonus if unlocked.

[lisa fullmer]

still can't find a way out. I would hate going to an earlier save and lose the experience behind. Where is the way out?

[Chaosolous]

Go out the way you came in. It's just a side path. There's nothing there but a few jars.

Follow your quest markers or explore more.

[Firecam]

I'm not certain if you are stuck IN the room or in the level.

[Skittles]

Remember, if you can jump in, you can jump out. Weight might be reducing your jump distance. Send inventory to camp and/or spread it out to amongst stronger characters.

[seeker1]

Spoilers?

Solve the puzzle, it unlocks a room behind it. In that room is a sword that causes madness, and a waking mind.

There's a solution for the puzzle at the Wiki, the one trick to it is you are trying to solve a puzzle in three dimensions, based on a "solution" they show you in only two. (So it's not always clear what nodes are above/below.) Took me a while to figure it out.

Put the waking mind in a nearby interface, make a deal with a disembodied head, and get Githzerai Mind Barrier buff.

Basically, that's the main thing you get from solving the puzzle.