The spring represents life and the debate between immortality and a mortal life. The spring gave the Tucks immortality as they drank from it, and with her introduction to the Tucks, the spring also offers Winnie the chance to become immortal as well. Jesse’s prevention of Winnie drinking from the spring in Chapter 5 foreshadows Winnie’s decision to refrain from drinking from the spring later in the novel. When presented with the bottle of spring water, Winnie eventually heeds Tuck’s advice and chooses mortality. Winnie’s impulse to save her toad by pouring the bottle of water over it illustrates the life given by the spring as the toad hops away after being heckled by a dog. In the Epilogue, the wood containing the spring has been destroyed. The spring’s fate is ambiguous, reflecting life’s own ambiguous ending.

The spring also serves as the link between the Tucks, Winnie, and the man in the yellow suit. The lure of immortality motivates the man in the yellow suit as he searches for the spring. The man’s death symbolizes how his obsession with immortality and gaining control over the spring for ill means destroyed him. Ultimately, the spring serves as an anchor for the Tucks as they return time and time again to the point of where their lives changed forever.