Music

 To me, a song is like a portrait of society the only difference is that a song has temporal dimensions while a picture has spatial dimensions.

So to make a beautiful song you should pursue different aspects of human society and shed light on them which is simply impossible to talk in normal conversations.

The reason is that when I am talking only words come out and if at some point I lose a thought or make little sense the listener immediately becomes distracted or loses interest in the conversation. Songs, however, have so many things to keep you occupied. There are lyrics and if they stop making sense there is rhythm and the music itself, the melody and the symphony of instruments. It's like different waves stacked on top of each other such that if one fails to carry the listener away the others will do the trick.