Iris flower meanings include nobility, chivalry, wisdom, messages, faith and purity. This is a great gift for people whom you look up to and who have inspired you in some way. These complex flowers embody the kind of beauty that gets better with age, as well as the kind of knowledge that can only be gained by life experience. Blue iris symbolizes spiritual faith, trust, and loyalty. What a lovely way to honor a long-term friendship or other trusted relationships. In addition, blue irises symbolize faith in your spiritual path or that of a loved one.