The song "Wonderland" by Paul Hardcastle is about being in a state of euphoria and pure happiness with someone special. The lyrics describe the feeling of being in a dream-like state or "wonderland" with this person, where everything feels perfect and their dreams have come true. The song conveys a sense of blissful contentment and gratefulness for having found someone who brings so much joy and fulfillment into the singer's life. The repetition of the phrase "I'm in wonderland with you" emphasizes the central theme of the song, which is the importance of being with the right person. Overall, "Wonderland" is a feel-good love song that celebrates the power of deep, meaningful connections between people. The song's catchy melody and simple, upbeat lyrics make it a favorite among fans of pop and electronic music.