This quote suggests that the speaker believes that music is all the proof they need to know that God exists. In other words, the speaker is saying that music is such a powerful force that it makes them feel like God exists. The quote implies that hearing music is enough to make the speaker feel a spiritual connection or divine presence. Music has the power to move people and make them feel connected to something larger than themselves. It can provide comfort and peace in difficult times and a sense of joy and belonging in good times. Music is a powerful tool, and for the speaker, it is proof enough that God exists.