Augustine of Hippo

Let each one also think this about his own life, that he may hate in it that private affection that is undoubtedly transitory and may love in it that union and sense of sharing of which it was said, "They had one soul and heart toward God." Thus, your soul is not your own but is shared by all the brothers whose souls are also yours, or, rather, whose souls form with yours not souls but one soul, the single soul of Christ, of which the psalm says that it is delivered from the hand of the dog. From this it is an easy step to contempt of death.