The double is not really the energy body, but the double is far more curious than the physical self.
The reason for referring the double to the energy body, is when using the term in the term, "Your energy body is coming closer to you." For example, one could say that about Amber and Ashleigh - their energy bodies are coming closer. What we mean is that the double is coming into actuation. I admit, one tends to be slippery with terms - a feature of the astral...
Nik, why do you ask about the curiosity of the energy body?