How does F. Scott Fitzgerald use imagery in Winter Dreams?

Imagery:

“The helpless ecstasy of loosing himself in her charm was a powerful opiate rather than a tonic.”

“He loved her, and he would love her until the day he was too old for loving--but he could not have her. So he tasted the deep pain that is reserved only for the strong, just as he had tasted for a little while the deep happiness.”