How does Elizabeth Barrett Browning deliver her theme in How do you love thee poem?

Elizabeth Barrett Browning delivers the theme of enduring and unconditional love in "How do I love thee?" by using a series of rhetorical questions that build upon each other to convey the depth and magnitude of her love. Through vivid imagery and emotional language, she expresses the boundless and eternal nature of love that transcends time and space. Browning's repetition of the phrase "I love thee" reinforces the idea of love as an infinite and all-encompassing force.