A narrator can write from different points of view, mainly first person or third person. Choosing the point of view is a big deal for an author, because the perspective from which a novel is narrated has a big impact on a reader's experience.
What poem is it? And what are some of the options
Humans need to eat and drink in order to survive, therefore it against natural law to deprive oneself of food and water, as natural law says that species must survive.