What Is Spirit?

In my experience, spirit can do everything an incarnate can, and more...:

1. Has a form -- Animal, Human, or Demon
2. Has all 5 senses like incarnates - Sight, Sound, Smell, Touch, Temperature
3. Travel to/from Heaven/Hell
4. Communicates telepathically
5. Can eat food, not like an incarnate - the food and drink will still be there, but the 'etheric' part of the food and drink can be consumed by spirit
6. Can express emotion -  can laugh, cry
7. Touching an incarnate is easy, the reverse is more difficult.