In Genesis 38:14, wrapping signifies to conceal, or not to acknowledge. (Arcana Coelestia 4860, Apocalypse Explained 331[2])

It also signifies covering the understanding with shade or impediment. (Apocalypse Explained 331[2])

In Jonah 2:5, the weeds wrapping his head signify false external knowledges besetting truth and good. (Arcana Coelestia 1691[5])