So there's a lot of information being referenced on this page, so here's a whole list of things you can look at for context:
Lyra saw Thistle's eyes glow back when they were fighting that frog monster thing here.
Thistle talks about Visions here.
And "Storms" should be a familiar term because they were referenced at the beginning of the chapter here.
Seems a bad time to mention that the next page is the end of the chapter...