Tzimtzum and the Olamos - Making space for us.

From Derech Hashem: A framework for Yidishkite: R Moshe Chaim Blate by R Moshe Chaim Blate.

How can Hashem be one yet the universe is filled with many? How can Hashem be unaffected by our actions? How do i perceive myself as a distinct entity? An elucidation of the concept of Tzimtzum. There is no despair!!! - Hashem is everywhere.