The narrator experiences a shift in mood after discovering a toy duck in a soap dish, likely left by a child. This unexpected find brings back memories of playful times and revives a sense of joy, as he reflects on how he hasn’t played with such toys in years. This whimsical moment serves as a reminder of innocence and fun, leading him to feel more lighthearted.

Diving into the experience of playing with the rubber duck, he describes how immersing it underwater and watching it burst back to the surface is an entertaining distraction. After spending just ten minutes indulging in this simple pleasure, he feels rejuvenated and more cheerful, ready to face his day with a lighter heart. This illustrates how small, seemingly trivial moments can significantly uplift one's spirit.