Gaston Bachelard Water And Dreams 'link' -

While air and fire point toward the sky (vertical transcendence), water points inward. Bachelard explores the concept of intimate immensity —the idea that the depth of a pond, a river, or the ocean reflects the depth of the human soul. To dream of deep water is to dream of one’s own hidden, complex interiority. Dark water signifies mystery, melancholy, and the unknown self.