An is very interested in the world outside the self.

An altruism is very interested in the world outside the self, where it can sacrifice one’s own interest to help others. Moreover, it disregards their own concerns to help another’s well-being without any expectation of reward nor they are just obligated to do it. Instead, they feel energized and happy after seeing others achieved their need or found solutions to their concerns.

Being interested in the world as outside the self the concept is known as altruism.

An altruism is one such condition in life where you will be sacrificing all your deeds to help some other person. They do not expect any kind of reward of applause in return. They feel happy in giving happiness to others.