Crossing the Jordan River
Yackov placed his staff in the river and it split into two, allowing him to cross.
 Escape from Lavan
When the forces of evil attack a person and he fights back, not only is he able to recover the energy they stole from him, he is able to extract energy that was buried deep inside of them from what they had previously captured. Therefore when Yaakov battled Lavan he was able to extract from him massive amounts of holy energy that manifested as his four wives, the twelve tribes and great wealth.
- ^ Rashi Berashis 32:11