In Genesis 38:14, this signifies truth obscured that pretends to be from good. (Arcana Coelestia 4859) The "high mountains being covered" (Genesis 7:19) signifies that all the good things of charity were extinguished.

(Odkazy: Arcana Coelestia 795)

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

(Odkazy: Apocalypse Explained 537)