The Mantle (Mantiya) is a monastic vestment, which covers the whole person with the exception of the head. Its freely flowing lines typify the wings of the angels; hence it is called are symbolical of the all-embracing power of God; and also of the strictness, piety and meekness of the monastic life. All monks, when present at divine service, must be robed in their mantles. The peculiarity of a Bishop's Mantle is that it is not black in hue, like the monastic mantle, but of purple or some other color; and upon it are sewn the so-called "Tables of the Law" (Skrizhali), and, in particular, the "Fountains" (Istochniki). The Tables (squares of embroidered velvet at neck and foot) typify the Old and the New Testament, whence the ministers of God should draw their doctrine. The "Fountains" are ribbons, usually red and white in hue, sewn horizontally round the Mantle, and represent the streams of teaching which flow from the mouth of the Bishop.