Quote Originally Posted by Jandor View Post
Pop to the Rising Stones, grab Thancred's body, TP back to Crystarium, drop it in front of his soul ghost. "There ya go mate, hop in and make yourself comfy."
In the MSQ, they mention that the only thing WoL can bring across the rift are items they consider their own belonging. A lifeless body is not a personal belonging, which is why they’re doing this whole plan of popping everyone into crystals.