Ab Inscientia Depositus Sum (Morphia)

In my heart I'm an ordinary man Though I may seem old and I'll I have had believes and dreams Believe me, I Have got them still As though my future looks black Yet my blood is also red I've never felt so blue Since They've told me, I'll soon be dead My hopes and joys have vanished As sorrows and despair have vanquished I think of beautiful memories long gone Knowing they're never to be returned Sometimes I fall down on my knees God, can't even Thy cure my disease? I'm crying, still no one hears Behold me for this vale of tears Although I don't have much time left to live I still have got love to give What I've done wrong? Please tell me why Ab inscientia depositus sum Tell me am I?