My demon

I sit in silence, He jumps and screams.                                                                            
I work with reason, He is blinded by passion.                                                      
I'm off doing good, he suggests we do bad.                                                                
I look out a window, he jumps off it.                                                

I'm a mere mortal, He has died many times.                                                                  
I long for daylight, he craves the night.                                      

I've chased him away, but he always comes back.                                                      
He's here to stay, till death do us part..                                                                    

HEY YOU!, do you have a demon too ??