Estudio
14 And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
'A sandal tree' signifies aspects of the natural self.
(Referencias: Apocalypse Explained 518)
18 I will open rivers on the bare heights, and springs in the midst of the valleys. I will make the wilderness a pool of water, and the dry land springs of water.