The reason is that whoever enjoys produce in this world without pronouncing a blessing is called a robber.14See B. Berakhot 35b. For by means of the blessing, one draws down shefa. The angel who is assigned to that fruit [which was eaten] is filled by the shefa so that a second fruit can replace the first. Thus one who enjoys the fruit without blessing it is a robber. For through eating an aspect of creation [without blessing it], he eliminated the spiritual element that it contained. [Thus he] prevented that divine power from being manifest in the world, when he should have drawn down a blessing from above. As a result, the angel’s power is annulled, since it no longer possesses the shefa [that it needs in order to replenish the fruit]. That is why the person is called a robber.