In "The Lightning Thief" by Rick Riordan, the speaker reflects on the grandiose promises made by someone special, who demonstrated their devotion by offering fantastical gifts. The imagery of stopping the tide suggests an immense power and a willingness to go to great lengths for love or friendship. It emphasizes how extraordinary gestures can symbolize deep connections and the desire to protect and cherish someone.

The mention of constructing a palace at the bottom of the sea further illustrates the whimsical and enchanting nature of their bond. This metaphor signifies creating a safe haven, showcasing the idea that love can build a dream world where one can escape the challenges of reality. Through these expressions, Riordan captures the essence of loyalty and the lengths to which one might go for those they care about.