This can often be associated with the biblical story of Noah’s arc mentioned earlier, however, it also has a more literal observation as rainbows are often seen after a tragedy (typically severe and destructive weather storms). Some people see a rainbow as a sign of a new beginning. Should anyone stumble upon this gold, they would be free to take a handful and this is often why people associate rainbows with good luck or good fortune for those that see them. Leprechauns were said to hide their gold at the end of a rainbow for safe keeping. This often leads back to Celtic/Irish mythology whereby the appearance of a rainbow would be an indicator of treasure at the other in the form of a pot of gold. The emergence of a rainbow is considered by many to be a sign of good luck. The rainbow is also a symbol used in film or literature to signify the promise of better times ahead and is used for dramatic effect towards the end of these fictional plots. The rainbow, therefore, acts as a symbol of God’s promise to humankind. The rainbow was said to be a symbol from God to say there would be no more floods, that this was a sign of a new day, and a promise of a better future. A rainbow can also symbolize promise which stems from the Bible when God flooded the earth to rid it of sin and evil.Īfter the flood, Noah left the arc to be greeted by a rainbow shining over the ocean.