Determining Central Theme in Lila's Story

In an excerpt from a novel, a young girl named Lila reflects on her family's struggles with poverty and her dreams of a brighter future. Lila often feels trapped by her circumstances, but she finds solace and inspiration in the stories her grandmother tells her about resilience and hope. As her grandmother narrates tales of overcoming hardships, Lila imagines herself breaking free from her current situation, aspiring to create a life filled with opportunities. The narrative captures the themes of perseverance and the pursuit of dreams against all odds.

Based on this summary, what is the central theme of Lila's story?