In the tree of knowledge, there is the matter of keeping, meaning that one should know how to keep himself from foreign thoughts. Since the tree of knowledge is called “good and bad,” one must know how to keep oneself from the bad that is there. The tree of knowledge is called “Malchut of the quality of judgment,” called receiving in order to receive,” and all the corrections are that he will work in order to bestow. Prior to this, he is in a state of “in order to receive.”