Hope is trust in God's promises, faith that if we act now, the desired blessings will be fulfilled in the future.
As with all commandments, gratitude is a description of a successful mode of living. The thankful heart opens our eyes to a multitude of blessings that continually surround us.
Peace in this life is based upon faith and testimony. We can all find hope from our personal prayers and gain comfort from the scriptures. Priesthood blessings lift us and sustain us. Hope also comes from direct personal revelation, to which we are entitled if we are worthy.