User blog comment:B214/Question and Answers 3/@comment-3965848-20140623153134/@comment-1359322-20140623161302

That was probably just Asia's nightmare. Since Fafnir was sealed inside an Artificial Sacred Gear before, he probably can send his conscious into another Sacred Gear. Ddraig did contact Azazel through Fafnir when he was still inside the Downfall Dragon Spear.