I was searching for EXO stuff and this caught my eye because I wanted to see if anyone else could explain the intro better. I FOUND IT!!!

It's atually really helpful and the info is accurate so it's a good source. The post is long but you have to read it all because it makes a lot of sense. Anyways, I hope this has been helpful to you. <3

The credit goes to admin C from @iDoKyungSoo

THE DETAIL EXPLATION (Link)

(Written and Arranged by: Admin C (@iDoKyungSoo))