The quote addresses overcoming skepticism and achieving success. "They laughed at my dreams" conveys that others dismissed or mocked the speaker's aspirations.
"But look who is laughing now" suggests the speaker's triumph over doubt and the realization of their dreams, implying a sense of vindication.
In essence, the quote celebrates perseverance and resilience. It conveys that defying naysayers can lead to the realization of one's ambitions. It's a reminder that belief in oneself and determination can prove doubters wrong, showcasing the transformative power of persistence and self-confidence.