Syrlya turns the hilt slowly as he inspects it much more closely. 'Diminished', he assumes, means it's a weaker or less sapient spirit. Perhaps one closer to an elemental than Cole. Which makes enough sense, given Cole's reverence for her.

"Yes. There are natural spirits, part of the essence of Tyria itself. And then there are the spirits of the dead. Some linger, some are simply powerful enough to be called to or cross over to."

He furrows his brow, turning slightly from the two of them and holding the hilt out in form--wondering if he can beckon the spirit out himself, if it'll respond to his desires to materialize.

"You would bind or communicate with them in a similar manner, and it is easier if they are willing." He tilts his head sideways in confirmation to Lavellan's words.