Experiencing grace involves the expansion of consciousness of self to all of one's surroundings as an unbroken whole, a consciousness of awe from which negative mindstates are absent, from which healing and groundedness result. For these reasons grace has long been deemed "amazing."
Gratitude is the most fruitful way of deepening your consciousness that you are not an "accident", but a divine choice. It is important to realize how often we have had chances to be grateful and not have used them. When someone is kind to us, when an event turns out well, when a problem is solved, a relationship restored, a wound healed, these are very concrete reasons to offer thanks.
What fascinates me so much is that every time we decide to be grateful, it will be easier to see new things to be grateful for. Gratitude begets gratitude, just as love begets love.