How does Edgar Allan Poe use imagery in Ligeia?

Imagery:

"The 'strangeness,' however, which I found in the eyes, was of a nature distinct from the formation, or the color, or the brilliancy of the features, and must, after all, be referred to the expression."

"I trembled not — I stirred not — for a crowd of unutterable fancies connected with the air, the stature, the demeanor of the figure, rushing hurriedly through my brain, had paralyzed — had chilled me into stone."