It is quite possible that there are other worlds that exist in the same space as ours that we simply don’t make contact with because these worlds are in a different dimension. But if we remain confined to the boundaries of our own nature, we will never be able to discover them. These other worlds are where our roots are, the reasons for everything that happens in our world. There we will find the reasons for our own life and death.
Rav Michael Laitman PhD
The Path of Kabbalah
Page 39 
