Likutei Sichot

 E=MC^2 breaks if the soul can
 separate from the body and
 become massless. In that
 regard Soul becomes pure
 energy. Only through the
 Speed of Thought, as G-D
 created the world, can you
 channel this pure energy.

 To accept this level
 of understanding you must
 accept that the only way
 to reach Energy you must
 part from a physical, massfull,
 being. The Zadikim where able
 to do this. As Rabbi Bal Shem
 Tov demonstrated the Bull
 with the hat eating in the
 other dimension. There are countless
 examples in the Torah & Kaballah where
 this practice of reaching masslessness
  in a spiritual manner is done.

 --
 Rabbi Jacov Baloul