Never played RS before, and feel kind of stupid for not knowing how to…

…”seal the cracks.” I’m not entirely sure what attuning is, but I at least think I’m feeling that one out. But then it says “seal the cracks” and I just watch the bars drain no matter what I try, and then I get no bonus runes.

I feel very dumb, but can someone explain what I’m like…physically supposed to do? With my controller? I’m on PS5