The five times repeated "Bless the Lord, O my soul" (Ps. ciii. civ.),
were said by David with reference both to God and the soul. As God fills
the whole world, so does the soul fill the whole body; as God sees and
is not seen, so the soul sees and is not seen; as God nourishes the
whole world, so does the soul nourish the whole body; as God is pure, so
also is the soul pure; as God dwelleth in secret, so does the soul dwell
in secret. Therefore let him who possesses these five properties praise
Him to whom these five attributes belong.
THE TALMUD, _Berachoth_, fol. 10, col. 1.