Strong emotions bring to the fore the most hidden traits of character.
In an extreme situation, a titmouse can behave like a hero, and a favorite of the public is to hide in a corner from fear.
The human psyche is practically not studied. Scientists can talk about basic reflexes, but only. The psychological component is practically not yet available for study. For example, psychotherapists still find it difficult to say exactly why a person's character changes so much in extreme situations.
To learn a person will really help onlyChange of circumstances. It is under stress that the true nature manifests itself. Therefore, one can never say that a person is a coward, or, conversely, a daredevil, before they saw his behavior in an extreme situation.
Also you can not fully understand your character. You can be convinced that you will never enter the water until you rush to save the drowning child. Or you will be sure that they are able to get along with anyone, until a loudly snoring comrade, who throws his socks anywhere, joins your room. Then you will understand that your usual behavior is rather superficial, but in reality in the shower you are a completely different person.
Usually people who have fallen into difficult circumstances,They never become the same again. They understand that the way they behaved earlier, and what they considered to be their character - is superficial. They acted based on the ideas of others about themselves, and tried to meet the requirements of relatives and friends. And only the extreme situation was able to pull out the real character, the man learned what he really is capable of. And he no longer wants to act on orders. Further behavior, he corrects based only on his own ideas about how to and how not to behave.