The song "Apple" by Joe Brooks is a love song about a person who is very important and precious to the singer, referred to as "Apple." The singer expresses gratitude for their presence in their life and compares their impact to a "before and after photo," suggesting that their life was incomplete before meeting them. The lyrics mention planting a seed and watching it grow, suggesting that their love and relationship will continue to flourish and evolve with time. The singer also describes how much they enjoy the sound of Apple's laughter, emphasizing the joy and happiness that they bring to their life. The ocean and waves are mentioned as a backdrop to their love, symbolizing the vastness and ever-changing nature of their relationship. Overall, "Apple" is a heartfelt love song that celebrates the depth and significance of a relationship with someone special.