The meaning of some words from monologue 

2.  bedlams, hags.

7.  close contriver, secret plotter.

13 . Loves for his own ends, follows you for his own purposes.

15 . the pit of Acheron, In classical mythology Acheron is one of the rivers of Hades. The "pit" may be taken here as meaning some dark ravine, or cave, supposed to lead down to the lower world.

20.  I am for th' air, I must fly up.

24 . profound, ready to fall.

26.  sleights, devices.

27 . artificial sprites, spirits called up, made visible, by magic art.

32.  security, confidence.

34.  my little spirit, my familiar demon.

35 . a song.