One thing is certain if we take the time to reflect on life. Life on Earth is characterized by dualism, such as light and dark, good and bad, or positive and negative. While confronted with this duality in life, we learn some difficult lessons. One aspect of this duality is the removal of negativity. Remember when grandmothers would predict that an evil eye would be cast upon a home? Her directives would come in handy when dealing with these negatives, and they might also dispel any unexpected issues that arose.