A Nitrian solitary, he was inflamed with love for God. Pior renounced the world early and went off into the Egyptian desert, where he gave himself to a life of heroic asceticism. It is said that he never sat at table to eat, but always ate standing up and working. When he was asked why he did this, St Pior replied: "I do not wish to be concerned with eating as though it were an occupation. It is merely coincidental." When he was called to sit in judgement on a brother who had done something wrong, he arrived carrying a bag of sand on his back and a small pouch in his hand. Questioned as to their significance, the holy man answered: "The bag of sand on my back is my sins, which I do not see; the pouch of sand is the sin of my brother whom I have to judge." Then all the brethren were confounded and exclaimed: "This is the way of salvation!" He lived for a hundred years and went to his rest in the Lord in the 4th century.