How does johnny's letter bring pony back to reality?

Johnny's letter serves as a poignant reminder of their friendship and the importance of staying true to oneself. It encourages Ponyboy to embrace his individuality and to find hope despite the challenges he faces. By reflecting on Johnny's Words, Ponyboy reconnects with his sense of purpose and the values they both cherished, grounding him in the reality of their struggles and the need for resilience. Ultimately, the letter inspires him to navigate his grief and move forward.