Here, she speaks of an intensity of emotion that is frequently assumed to diminish with age. More than that, she is talking about having been disillusioned. She lost faith in certain saints, as sensitive people are liable to do as they mature and observe the evils and shortcomings in the world. But Elizabeth Barrett Browning is suggesting that her love now has restored this intensity. She loves now with as much passion and feeling as she ever felt for anything before, even when she was young and innocent.