Yaakov Avinu suffered great pain in raising his children and all of the efforts went to provide them with the shefa and abundance of blessings in order that they would be able to be completely righteous Tzaddikim so that nothing would prevent them from serving H'shem. A Tzaddik who follows in Yaakov's footsteps and also draws down blessing to the world is called in Yaakov's name.
Mipeninei Noam Elimelech
The Ba'al Shem Tov used to perform kefitzat ha-derech a miraculous shortening of distances every week after Shabbat together with his disciples. They visited the home of a couple and informed them that because of their extended rejoicing, it has been decided in Heaven to grant them either abundant wealth or a son who would brighten the world with his Torah learning The couple decided they had no need of wealth but they certainly wanted a son. The Ba'al Shem Tov advised them to name the child after himself Israel and so it was The following year a child was born and they named him Israel the great Rebbe Israel the Maggid of Kozhnitz who became famous all over the world insofar as he illuminated it with his learning
From the book i shall Raise up wings of Dawn