The runes is the ABC of futhark, which is an ancient ABC.
This ABC is just like ours like the english abcdefg.... but the futhark abc's letters has power in them.
The most power you can get from them if you vibrate them. You could just say them but chanting/vibrating them is way more powerfull.
Here is how you vibrate/chant:
https://satanisgod.org/www.angelfire.com/empire/serpentis666/THAUM.mp3
https://satanisgod.org/www.angelfire.com/empire/serpentis666/YAUM.mp3
https://mega.nz/folder/aIxxRKoC#KgOVQuGlBBA4LbQKbcTnZA
And specifically this is how you pronounce the runes:
https://satanisgod.org/www.angelfire.com/empire/serpentis666/Runic_Pronunciation.html
The sigils are also called, or part of the Yantras. Now there are specific Yantras that is a sigil of a mantra, and since the mantra can be vibrated therefore you can vibrate that yantra/sigil because it is a mantra too.
Now if you think of the demons and Satan's sigils they can't be vibrated but sort of if you vibrate the name of that demon.
So like in a way you can vibrate sigils/yantras but no, we vibrate mantras; runes, names.