We miss moments all the time and if we fully lived them all we might spontaneously combust, or appear intensely hyper and loony. This brings awareness to all the moments that we miss, that we dull out on.
We rarely if ever look at the "I" that's making our everyday assumptions. Our meditation practice, rather then being theoretical or metaphysical, is extremely personal and direct -- it's highly experiential.
Spirituality is not for someone who is seeking peacefulness. Spirituality is for someone who is seeking ultimate liberation, who is willing to shed everything that is false and arrive at the true nature of one's existence.