What is the " The Sign of the Cross" ?

The Sign of the Cross is one of the most important and one of the most frequently used of the sacramentals.
It is the sacred sign first taught to the feeble fingers of the child at its mother's knee; it is the sacred sign traced by the faltering fingers of the dying Catholic. From birth to death it is the holy sign, the holy ceremony that continually reminds the Catholic of the source from which all spiritual blessings come-the cross. The two most common forms of sacramental are the large Sign of the Cross made by touching the forehead, the breast, and
the left and right shoulders.The cross thus covers the body- at least the most important members--the head and
heart. The smaller Sign of the Cross is traced upon the forehead, lips, and breast.