The question lies in how abundant these are. [That said, Lexa does motion toward the ruined monoliths, the very ones that don't seem to provide much of anything. She reaches up, touching one of them, and isn't surprised when nothing happens.]

Since I woke up, I met people who have abnormal strength, who can heal quickly, and who can burn things with their eyes. If all that is possible, this may be, as well. [Along with keeping people in pods that couldn't entirely be disrupted.

If this was a source for other people, it may be for them.

Then again:]

But it may be a trap. [She tugs out some of the greenery so she can examine it more closely.] What seems safe may just be a way to lure others in. But it's hardly an effective trap.