Why is VI VII I such a powerful chord progression?

Edit: Dumb autocorrect ruined the title. In A minor, the progression in question is VI VII i.

I took years of theory and played piano in college, so if you've got some theory to explain, hit me.

Normally, it's all about the I-V-I. That's a strong cadence. There's lots of other chord progressions out there, and some of them can get really strong. Like the classic Plagal cadence IV-I, the big "Amen".

None of them ever seemed anywhere as strong as VI VII I (F G am) to me. I always kinda looked at it like, in major, it's I-V-I, and in minor, it's (VI) VII I. They're the big Cadences.

I'm not sure exactly what my question is. I just want to know more about the relationship between these chords in minor. Why does the VII chord have so much weight to me, especially when lead up to by the VI chord?

Also, cause it's this sub, here's why I have this question. I've always felt like this, but this song does it really well in the drops.

Illenium - Sleepwalker

Thanks for any input!

Double edit: I posted this here cause I feel like being in minor, but still just using I IV and V from the relative major is such a modern "pop music theory" thing. Like lots of songs are in minor and do things like vi IV I V. Definitely something that's heavy in modern EDM.

Submitted November 06, 2016 at 04:20PM by Risen_from_ash https://www.reddit.com/r/edmproduction/comments/5bhgwm/why_is_vi_vii_i_such_a_powerful_chord_progression/?utm_source=ifttt