Lebanese Woman's Dress: "Thoub"

Women would sew in items to represent their heritage, ancestry, and affiliations. Triangles, used as amulets, were often incorporated to ward off the "evil eye", a common superstition in the Middle East. Large blocks of intricate embroidery were used on the chest panel to protect the vulnerable chest area from the evil eye, bad luck and illness.To avoid potential jinxes from other women, an imperfection was stitched in each garment to distract the focus of those looking. Girls would begin producing embroidered garments, a skill generally passed to them by their grandmothers, beginning at the age of seven. 
Source:
http://en.wikipedia.org/wiki/Palestinian_costumes