The song "That Is Why" by Eddy Grant is about a person who is willing to go to great lengths to prove their love and commitment to their partner. The lyrics express the desire to show unconditional love and dedication, even if it means repeatedly trying to win back their partner's trust. The singer asks how many times they must run to their partner to prove their love is true and how many times they must feel the pain of starting all over again. Despite the challenges, they believe that their actions will eventually make their partner realize the sincerity of their love. The lyrics also mention the passing of seasons, comparing the singer's love to the purity of snow. They acknowledge that they may occasionally be late or make mistakes, but they emphasize that the majority of the time, their partner would wait for them. The singer wishes to please their partner as much as they desire, hoping that by continuously showing up and putting effort into the relationship, their love will endure. The refrain of the song repeats the lines "That is why, my love, that's why I'll be calling 'round to you, my love. Tonight, tonight." This repetition reinforces the dedication and determination of the singer to make their love last. They express that they miss their partner's love and attention, which is the main reason why they keep coming back. Overall, the song tells a story of unwavering love and the importance of constant effort and attention in a relationship. It conveys the desire to prove oneself and maintain a strong and lasting connection with the person they love.