What is the resolution to when you reach me?

In "When You Reach Me" by Rebecca Stead, the resolution unfolds as the protagonist, Miranda, comes to understand the complex connections between her life, her friends, and the mysterious letters she receives. She learns about the nature of time and fate, ultimately realizing that her actions have a significant impact on the people around her. The story culminates in a poignant revelation about love, friendship, and the importance of being present in the moment. Miranda's growth and understanding lead to a sense of closure as she embraces the future with hope.