In Genesis 26, the well signifies that people who were in the mere worldly knowledge of truths of faith were unwilling to make the internal nature of the Divine more well-known. (Arcana Coelestia 3412)

Broken cisterns in Jeremiah 2:13 signify false doctrines.

In Deuteronomy 6:11, cisterns hewn out signify the interiors of the natural mind–full of knowledge of good and truth. (Apocalypse Explained 617[13])

(Odkazy: Arcana Coelestia 2702 [1-17])

6150. 'And ate their fixed portion which Pharaoh had given them' means that they did not make any forms of good their own beyond what had been decreed. This is clear from the meaning of 'eating' as making one's own, dealt with in 3168, 3513 (end), 3596, 3872, 4745; and from the meaning of 'fixed portion' as that which has been decreed, as immediately above in 6149, so that 'eating a fixed portion' means not making any forms of good one's own beyond what has been decreed. This decree was made by the natural, represented by 'Pharaoh'. that is, in the natural under the control of the internal, see also immediately above in 6149.