What does Genesis 28:8 mean?

Isaac sent Jacob away. He went to Paddan Aram to Laban, son of Bethuel the Syrian, Rebekah’s brother, Jacob’s and Esau’s mother.

Now Esau saw that Isaac had blessed Jacob and sent him away to Paddan Aram, to take him a wife from there, and that as he blessed him he gave him a command, saying, “You shall not take a wife of the daughters of Canaan,”

and that Jacob obeyed his father and his mother, and was gone to Paddan Aram.

Esau went to Ishmael, and took, besides the wives that he had, Mahalath the daughter of Ishmael, Abraham’s son, the sister of Nebaioth, to be his wife.

Jacob went out from Beersheba, and went toward Haran.

He came to a certain place, and stayed there all night, because the sun had set. He took one of the stones of the place, and put it under his head, and lay down in that place to sleep.