-It says “Yackov traveled to the East"

-Somewhere in the unexplored mountains of the East there is a place of darkness where the two original fallen angels are kept captive.
-All the big people steeped in black magic would travel to this place to learn the secrets of the occult .
-Laven spent a lot of time there he was the worlds master of occult.
-Yackov knew that he would have to spend a lot of time with Laven, he therefore traveld to the mountains of Darkness himself. He was holly enough to be protected, he used the names of G-D to bind them into revealing information to him.
-It is permisable to learn black magic to know how to protect oneself from it.
-He probably used Kfizat Hderech (warping through sphere of space), since he was so busy with it at that point.
-Therfore when it says ‘He switched my salary tens (hundred) of times’, it means it literally. All those years that Yackov spent by Lavan they were constantly doing battle.
-This is why Lavan so readaly agreed to Yackovs deal on the cattle, he knew Yackov was planning something but he was certain that he could counter it.

( Rabbi Yonasan, Tiferet Yonason - Vyetzeh )