Every substance in the planet has a certain field of energy around it. All you see as substance on the planet is actually energy.
This is a scientific fact. Ask Einstein or Heisenberg!
The whole existence is energy. Some parts of energy has manifested itself in a certain level of reverberation, and that makes it a physical form. Another part of the energy does not manifest itself in a physical form. But it still has a form.
That form, which is not yet physical or refuses to become physical, but still maintains a form, that is you.