“The Hutsuls––Ukrainians who live in the Carpathian Mountains of western Ukraine––believed that the fate of the world depends upon the pysanka. As long as the egg decorating custom continues, the world will exist. If, for any reason, this custom is abandoned, evil––in the shape of a horrible serpent who is forever chained to a cliff–– will overrun the world. Each year the serpent sends out his minions to see how many pysanky have been created. If the number is low the serpent’s chains are loosened and he is free to wander the earth causing havoc and destruction. If, on the other hand, the number of pysanky has increased, the chains are tightened and good triumphs over evil for yet another year.
Newer legends blended folklore and Christian beliefs and firmly attached the egg to the Easter celebration. One legend concerns the Virgin Mary. It tells of the time Mary gave eggs to the soldiers at the cross. She entreated them to be less cruel to her son and she wept. The tears of Mary fell upon the eggs, spotting them with dots of brilliant color.
A common legend tells of Simon the peddler, who helped Jesus carry his cross on the way to Calvary. He had left his goods at the side of the road, and, when he returned, the eggs had all turned into intricately decorated pysanky.”
“Many superstitions were attached to pysanky. Pysanky were thought to protect households from evil spirits, catastrophe, lightning and fires. Pysanky with spiral motifs were the most powerful, as the demons and other unholy creatures would be trapped within the spirals forever. A blessed pysanka could be used to find demons hidden in the dark corners of your house.
Pysanky held powerful magic, and had to be disposed of properly, lest a witch get a hold of one. She could use the shell to gather dew, and use the gathered dew to dry up a cow’s milk. The witch could also use bits of the eggshell to poke people and sicken them. The eggshell had to be ground up very finely (and fed to chickens to make them good egg layers) or broken into pieces and tossed into a running stream.
The cloth used to dry pysanky was powerful, too, and could be used to cure skin diseases. And it was considered very bad luck to trample on a pysanka–God would punish anyone who did with a variety of illnesses.
There were superstitions regarding the colors and designs on the pysanky. One old Ukrainian myth centered on the wisdom of giving older people gifts of pysanky with darker colors and/or rich designs, for their life has already been filled. Similarly, it is appropriate to give young people pysanky with white as the predominant color because their life is still a blank page. Girls would often give pysanky to young men they fancied, and include heart motifs. It was said, though, that a girl should never give her boyfriend a pysanky that has no design on the top and bottom of the egg, as this might signify that the boyfriend would soon lose his hair.”
Source: Explore the Wikipedia “Pysanka” for more information