How should I explain this since you opted to play dumb. Take a mainstream song of today...let's pick "She Will Be Loved" by Maroon 5. Would you say that song sounds generic? God I hope so otherwise all is lost. Let's say that song was actually written about an actual human. A human who lived through hardships blah blah and overcame the odds. And she was afflicted with some type of disorder. Now does the song sound less generic? Maybe in theory. But listen to the song again and it still sounds like safe mainstream generic garbage. Point is: you can say your songs about anything, any subject whatsoever. If the musical aspect of the song sounds generic, and the lyrics chosen don't really help, then it will end up still sounding generic. Not that generic is always a bad thing. It usually is. But even I can sometimes mellow out to a trendy pop tune.