Can I?

I’m a snake in a sea, Who has huge fangs . Venom in it is death’s key With which I fulfill my water-gangs. I’m a creature born this way to live here. Narwhals try to kill me with horns, Their intention to bury me is clear. I can’t leave them, can I? To survive , I need to do it. For the loss they cry, But to live what I just did? I can’t change, can I? God created me this way. For one to live, one has to die, It's the game of life to play.