One of the traditions passed down is the custom of inviting children to
come to the home of the newborn to recite prayers, say Psalms, and make
blessings over food. This is because children's voices are pure and their
souls are unblemished. Their prayers pierce the heavens, forming a
spiritual protection and draw down blessings upon the newborn and the
entire household.
During this night, the parents devote themselves to Torah study, ideally
near the child. Some material has been provided here.
The night before the Bris is called "Leil Shimurim" -- the night
of protection. Jewish mystical teachings explain that because the mitzvah
of Bris Milah is so great and spiritually powerful, negative spiritual
forces are at work to hinder the performance of this mitzvah. Therefore,
one must take positive action during the night before the Bris to serve as
a spiritual protection.
It is appropriate to keep some light on in the child's room throughout the
night.
It
is also customary for the father, the Mohel, and the Sandek (the person
who holds the infant during the circumcision) to immerse in a Mikvah
(ritual bath) on the morning of the Bris.
