Musar zu Bereschit 1:7

The expression הבדלו, "become separate!" which Moses used in 16,21, also alludes to the "separation" of waters that took place during the second day of Creation (Genesis 1,7). "Separations" are indications of creational activity. Originally, all of Creation had been for the sake of "Adam". Since Adam however, grew apart from G–d, Aaron was brought "close to G–d" in his place when he became the High Priest. We have explained all this based on the Midrash in our commentary on the portions that comprise תורת כהנים.

Nowadays prayer takes the place of the sacrifices, therefore a person must pray with a broken heart and have in mind to prepare adornments for the Shechinah with his supplications. Those who have this in mind when they perform good deeds bring satisfaction to the Shechinah. These individuals are known as “men of deeds” because the word “deed” [ma’aseh] has the connotation of “fixing” [tikkun]. Thus the word “And He did” [vaya’as; Bereishis 1:7] means in context, “And He fixed” [vetiken]. Similarly, the woman of Shunem said to her husband, “Let us fix up [na’aseh] a small walled-in attic room and place for him there a bed, a table, a chair and a lamp” (II Melachim:4:10). This woman also had in mind to honor the Shechinah, for the four items she mentions are the things that the children of Israel must prepare for the Shechinah. Thus when a person prays the evening Amidah he should have in mind that this prayer corresponds to the “lamp.” And when he recites the evening Shema he should have in mind that it corresponds to the “bed.” The Verses of Praise and the morning Shema correspond to the “table” and the morning Amidah corresponds to the “chair.” He should have all these intentions in mind for the honor of the Shechinah, as is discussed in the Zohar at length (2:133a).