Quote Originally Posted by Rongway View Post
Wouldn't we have to...
As far as we know currently? Yes, we would. Doesn't mean that that couldn't change in the future, that an alternative method couldn't be discovered.

Or, we COULD use that method, only

Our body on the Source is preserved in some way (probably in a crystal, given the franchise :P), giving us a body to return to after our business there is concluded.