What does it mean? (Double Rainbow guy meme)

What does this mean, it's so bright, so vivid, double rainbow, double rainbow, it's so intense. As you look up in the sky, you have to wonder to yourself, what does it really mean?

Your reaction as you see the double rainbow, you just can't even contain yourself. What an awesome feeling.

Double rainbow all the way across the sky. It's so intense, bro.

Do you love the Double Rainbow guy?

He's a staple of internet culture. He's a part of our history. When you see him look at the rainbow and get so happy, you can't help but be happy yourself. That's why I love viral videos and the internet.