We always think only of ourselves, but never think of others. We can not see or tolerate others better. But if we cooperate for someone else's success or cooperate for good work, then surely, we can enjoy unbelievable happiness. We can get the divine happiness. By loving others, we can also make our love deeper.
Helping others can bring our success. It is literally true that one can succeed quickest by helping others to succeed.
Helping others is not only responsibility of our life , it also gives meaning of our life.