fallen creatures

We are all creatures. We receive our being from the creator, God.
Because of original sin, which is exacerbated by personal sin, we are not in a state of friendship with God. Sin cuts us off from the sustenance that God wants to give us.

The person in a state of grace receives all that he needs from God. Having received these gifts he can make good use of them for himself and his neighbor.

The person at enmity with God, because he no longer receives from God, is very unstable. So he must look at the goods of the world as something to be taken and used for himself. He cannot afford to be generous because his sin has cut off the supply that was coming in from God's goodness.

Before the fall Adam and Eve were naked and felt no shame. There was no lust in them, no taking of what can only be a gift.
After the fall they were naked so they hid themselves. Experiencing their vulnerability they had to protect themselves. Love (a gift) is turned in to lust (taking what sin has made man incapable of receiving).