In 'Piano,' D. H. Lawrence evokes a powerful sense of nostalgia as he recalls his childhood memories triggered by a woman's song. The poem begins with the gentle image of a woman singing at dusk, which transports the speaker back to his childhood. He vividly remembers sitting under a piano, feeling the vibrations of the music, and the comforting presence of his mother. The song's mastery is described as insidious, suggesting its ability to involuntarily draw him back to a time of warmth and security. Despite his adult self, the memories of old Sunday evenings, hymns, and the cozy parlor are so vivid that they reduce him to tears. The poem captures the universal longing for the innocence and comfort of the past, highlighting how certain sounds and songs can evoke deep emotional responses. The final lines emphasize the futility of trying to resist these memories, as the speaker is overwhelmed by the flood of remembrance, leaving him weeping for his lost childhood.