'To open,' as in Revelation 9, signifies communication and conjunction.

(Ссылки: Apocalypse Explained 537)

13. Is he that readeth, signifies that they have perception. This is evident from the signification of "reading" the Word, as being to understand from enlightenment, thus to perceive, since to "read" signifies the like as to "see," because he who reads, sees, and to "see" signifies to perceive from enlightenment, as was shown just above (n. 11).