Every act and ritual is often associated with the group. Emotions such as pride, loss, or confidence, come from the group and are shared. The group can go so far as to become a deity or an eternal living force that is indestructible and wonderful, most often in the case of religious crusades. Armies most often use this tactic. Since the natural tendency of a person is to avoid death and killing, they turn it into a game or a ritual.
Crusades often have an overemphasis on the future.
Often with a few distortions and deletions. Self-sacrifice and unity with a group are not rational acts. All doctrine is considered absolutely true and anyone who questions it is often branded as a heretic. Doctrine is not meant to be understood. It's meant to be believed in.