Kabbalah zu Bereschit 9:2

"And let them have dominion over the fish of the sea" (Ibid.). We have seen this secret in the Book of King Solomon, where it says that if a person has pity on the poor from all his heart, his image shall not be changed and shall remain forever as that of the first man. As a result of having the mark of the image of Adam, he therefore shall rule over all creatures on earth by that image. As it is written, "And the fear of you and the dread of you shall be upon every beast" (Genesis 9:2). All have fear of that image and dread the image marked on him, because this is the most praised precept. It is above all the others, because by this precept, the Son of Man is able to elevate himself by the image of Adam.