Tidal (Ellipse) Lyrics

Lyric discussion by whitefroufrou 

Cover art for Tidal (Ellipse) lyrics by Imogen Heap

I get that the chorus and ending are telling him to just let go and have sex with her, but I don't get what the two stanzas are about? And probably what's "moving" and "flickering" is the kindle/sparks/relationship between the two. <3 I love that message, but I would really like to undertand it more with the two stanzas!!