Clairvoyance
The umbrella collects two scenes in which a person sees what others present do not — one through forbidden necromantic consultation, the other through a prophet's prayer that the eyes of his servant be opened.
Saul, the woman of En-dor, and the figure of Samuel
In the night-visit at En-dor, the medium reports seeing a figure rising out of the earth and describes him in terms that Saul recognizes as Samuel: "And the king said to her, Don't be afraid: for what did you see? And the woman said to Saul, I see a god coming up out of the earth. And he said to her, What form is he of? And she said, An old man comes up; and he is covered with a robe. And Saul perceived that it was Samuel, and he bowed with his face to the ground, and did obeisance." (1Sa 28:13-14). The seeing here is staged inside a forbidden consultation that Saul has gone to seek out under disguise.
Elisha's servant at Dothan
In the Aramean encirclement at Dothan, a different kind of opened sight is given by prayer. The servant rises and sees only the besieging host; Elisha sees the unseen forces with him and asks Yahweh to open the young man's eyes: "And when the minister of the man of God had risen early, and gone forth, look, a host with horses and chariots was round about the city. And servant said to him, Alas, my master! What shall we do? And he answered, Don't be afraid; for those who are with us are more than those who are with them. And Elisha prayed, and said, Yahweh, I pray you, open his eyes, that he may see. And Yahweh opened the eyes of the young man; and he saw: and, look, the mountain was full of horses and chariots of fire round about Elisha." (2Ki 6:15-17). The eyes are opened by Yahweh in answer to the prophet's prayer; the mountain that had been bare is now full of horses and chariots of fire.