Estinien question(spoilers)

[treuhavik]

"Chosen"
From what I've seen in heavensward it would seem that the "azure" dragoon used the eye as a constant power source, which is what elevated us above normal dragoons.

Keep in mind that we never possessed a dragon eye, and Estinien wasn't supposed to be carrying one either. The Eye is considered a relic of Ishgard and was to remain under key within the See. Estinien stole the eye in a failed attempt to lead Nidhogg away from Ishgard, if you'll remember. All that matters is that it "chose" us, meaning we and it resonated in some way when in close proximity, the sole step in selecting an Azure Dragoon.