Answer:
The human being is truly human when he transcends himself.
Explanation:
The human being is really being human when he suffers, when he makes mistakes, when he faces death. So is he when he looks back and feels the weight of his past, and when he looks forward with anguish for things to come. But there is more. Man is also a man and especially when he accepts all these adversities with humility, as part of his humanity. When he stops resisting what he has to live to give up his pleasant and stress-free balance. When he becomes aware that despite suffering, everything (even suffering itself) offers him a possibility to update, something valuable to grasp, a meaning to discover.
Behold, man is called to transcend, to go beyond himself. The meaning of his existence does not concern him immanently, but in communion with what the world and life grant him with each experience and with each sacrifice. And when he comes to know what it is about, he has torn the veil of Isis that covered his eyes. Then the meaning comes to life and the spiritual takes the helm to incarnate itself in his being.