"This Is What You Came For" is a song by Calvin Harris featuring Rihanna. The song is about a captivating and alluring woman who has caught the attention of everyone around her. The lyrics suggest that whenever she moves, it feels like lightning striking, emphasizing her powerful presence and charisma. The song implies that despite the fact that many people are watching this woman, she is focused solely on the person singing the song, which is implied to be a romantic interest. The repetition of the line "But she's looking at you" emphasizes the strong connection between the singer and this mysterious woman, suggesting that their attraction is mutual. The lyrics also touch on the idea of living in the moment and indulging in a fast-paced lifestyle. The lines "We go fast with the game we play" and "Who knows why it's gotta be this way" allude to the thrill and intensity of their relationship. Overall, "This Is What You Came For" portrays a mesmerizing and thrilling love story, where the singer is enthralled by the allure and beauty of this woman, who seems to be equally captivated by him. It celebrates the power of attraction and the adrenaline rush of being caught up in a passionate relationship.