Gabriel wrote this passage in a first person point of view. This means a character participating in the text is telling the events from his/her perspective, we can figure that out because he uses the pronoun "I" and words like "my", "me".
The author uses this point of view so that we can know how the character was feeling at all time. We can be aware of all his thoughts and feelings; the way he describes the events, makes it possible to see things through his eyes.