Prediction Biblical prediction?

[IslandHippyMama]

Dream starts at =Having dinner with mom and dad and family, at apartment looking over the ocean in a city.The sky was incredibly dark and cloudy, during the day. Part of the sky lit up in a light blue light, like the moon was behind the clouds. All of the sudden there is this roar, and a giant blue "cross" which looked like the letter t, and was blue and on fire with blue flame, came crashing through the clouds over the ocean.
     My girlfriend and I suddenly left the apartment, running down an alley that would take us to the ocean. The Alley opened up near the beach,and we arrived just in time to see the Giant blue flaming cross hit the water, and me and my girlfriend were extremely worried about a tidal wave, but we stayed because we "had to know" if a prophecy was correct. I couldn't think at the time what the prophesy was of or if it was real in real life but we had to stay to watch the wave. And sure enough, the very small wave, only about one meter high, washed up a TON of dead, half eaten and rotted fish, and we both knew the prophecy had come true. THen I heard a booming voice and it said "you have been warned!" then i woke up.

Interesting dream! I'm sure there must be some kind of significance regarding the cross being blue and blue-flamed? Are you able to elaborate on that further? Maybe it was only to get your attention and to signify that it is a religious warning? (Warning from God?).