Jews and Jesus have very little to do with each other, despite Jesus having been born Jewish. See:
God, they just don't believe Jesus was the messiah.
I'm not sure what you mean by "judaisms," do you mean Jews? And what exactly do you mean by their "connection to the world"? Like how Judaism was the first monotheistic religion to ever exist? The impact that it has had on societies? This seems a very open-ended question.
Just by dreaming Jesus will not have any special connection with you.
Jerusalem
Israel
Rabbis and cantors
There is no connection between Moses striking the rock and Jesus. The only connection that does exist is both we're Prophets of God
Of course not.
The is no such thing as a "judaism".
Judaism does not have a centralized leadership.
Jews worship in synagogues.
Belief in God and in the Torah.