Keeping a dream journal and writing dreams down requires discipline and objectivity. Starting to parse through the symbols and stories of dreams also demands humility. Dreams are Nature's mirror; the bad as well as the good about you are reflected right back, without any filter. That's why cultivating a sense of humor about the less than pretty things a dream is pointing out is a great idea.
Dream work is soul work. To work with your dreams supports you in your goal to evolve into the fullest and finest version of yourself.