How does Gertrude Stein use imagery in Melanctha?

Imagery:

Melanctha Herbert always loved too hard and much too often. She was always full with mystery and subtle movements and denials and vague distrusts and complicated disillusions. Then Melanctha would be sudden and impulsive and unbounded in some faith, and then she would suffer and be strong in her repression.

"It was only while one really loved Melanctha that one understood how to forgive her, that she never once complained nor looked unhappy, and was always handsome and in spirits, and yet one always knew how much she suffered”