Wow, I really liked this video.  It's serious and silly at the same time. The Myriad is a group of hunters in a magic wood with weird creatures who agree to a certain task.  I don't want to spoil it for you, but the creature turns out to be the lead singer's father who is actually dead during the whole video and the entire environment is a computer generated dream piped into the humans' brains so they can be used for energy.