In the Book of Genesis (32:24ff), I get the impression that Jacob was at his wits end. He was alone in the wilderness, having sent all that he had in the world away from him. He felt his brother Esau might kill not only he (Jacob) but all of his people — including his wives and children. Then, when Jacob least expected it "a man" began wrestling with him in the middle of the desert:
Genesis 32:24-29: "Then Jacob was left alone, and a man wrestled with him until daybreak. 25When he saw that he had not prevailed against him, he touched the socket of his thigh; so the socket of Jacob’s thigh was dislocated while he wrestled with him. 26Then he said, “Let me go, for the dawn is breaking.” But he said, “I will not let you go unless you bless me.” 27So he said to him, “What is your name?” And he said, “Jacob.” 28He said, “Your name shall no longer be Jacob, but Israel; for you have striven with God and with men and have prevailed.” 29Then Jacob asked him and said, “Please tell me your name.” But he said, “Why is it that you ask my name?” And he blessed him there."
Is it reasonable to conclude that Jacob expected a blessing from the angel to protect he and all his household from Esau, or were there other that may have awaited them in the wilderness? Also, are we told whether there is special significance to the angel dislocating Jacob's thigh during this physical encounter?