When words fail, music speaks.
I believe this quote exists for a reason. Adler and Doren in their book, How to read a book mentions that one of the reasons human beings disagree with each other is due to the complexity of the human nature.
Since language is an imperfect medium for conveying knowledge, it serves as a hindrance to communication.
I believe this is where art forms such as music come to the rescue where the words fail. Jason Silva of Shots of Awe explains this beautifully in his video.