"It can vary." It is easier to keep his attention focused upon those things he can provide meaningful assistance with--offering explanations, providing context that others in the town simply would not think to include for a man of Lan Xichen's background--rather than risk wounding Lan Xichen further by addressing the heartbreak on his face directly. Still, he sees it; and still, it twists something inside him that has already been walking wounded for years.

(That this place might finally grant them the freedom to explore something they have both wanted for years cannot make up for the many, many obstacles it has introduced instead.)

"There is some literature about it, which may be more helpful than anything this humble one might say, at the library. Perhaps you should visit." He tries to offer the option out with a soft smile, and the warmth in his expression is sincere, but it fades the longer he watches Lan Xichen's expression.

A moment's hesitation, before he summons the courage he has acquired for himself during his time here, and reaches out a hand to very gently touch Lan Xichen's wrist. "Er-ge, I can help you, if you will let me." It doesn't take an immortal sage to figure out he's not talking about directions to the library.