In Genesis 27:12, this signifies what is innermost and all of perception. (Arcana Coelestia 3528)

In Exodus 10:21, 'a darkness to be felt' signifies the density of falsity from evil. (Arcana Coelestia 7712)

In Mark 5:29, this signifies conjunction with the Lord through communication and receiving Him. (Arcana Coelestia 10023[7])