Souls in deadly sin look to nothing but how they might find nourishment in the earth. Their appetite is insatiable, but they are never satisfied. They are insatiable and insupportable to their very selves. But it is quite fitting that they should be forever restless, because they have set their desire and will on what will give them nothing but emptiness.
This is why they can never be satisfied: They are always hankering after what is finite. But they are infinite in the sense that they will never cease to be, even though because of their deadly sin they have ceased to be in grace. People have been set above all other created things, not created things above people, nor can people be satisfied or content except in what is greater than they. But there is nothing greater than they except I myself, God eternal, and therefore only I can satisfy them.
(pp. 173-174)
{The soul} must serve and hope in me, or she will serve and hope in the world and herself. Insofar as she serves the world with a sensual service apart from me she is serving and loving her own selfish sensuality, hoping to find sensual pleasure and profit in this love and service. But because her hope is set on empty finite passing things, her hope will fail her and she will never, in effect, attain what she desires. So long as she hopes in herself and in the world she will not put her trust in me... But the soul who perfectly hopes in me and serves me with her whole heart and will must necessarily put no hope in herself or in the world or in her own weakness.
(pp. 280-281)