[And it was about to get that much harder because...Aya tilted her head to the side briefly, before realization of a sort dawned on her.]

Ah, you are referring to a more tactile sensory experience.

[Suddenly, her own lack of understanding was that much clearer. Ironically enough.]

That is something I do not possess, either. I can register degrees of pressure, but my physical form was not constructed with the proper nerve endings to accurately process other sensations.