From the album WIRED
This is about wanting something so badly it physically hurts to look at. The speaker frames it as being overwhelmed by someone else's brightness, but the real story is simpler and worse: they already had a hole in their life, and now they're using this person to burn it wider. The warning comes eight repetitions too late.
Heart of mine would you believe me if I said / 'In time you will see / This is a vision you weren't meant to see'
The speaker talks to their own heart like it's a separate entity that needs convincing. Forbidden sight language, except the forbidding happens after already staring. The warning is performance.
Your skin, the sun, it burns my eyes / And blinds as it burns, a hole in my life
Notice what gets connected: burning doesn't create the hole, it burns through one that already exists. The vision didn't ruin anything. It found the ruin and lit it up.
You set my head alight / My head alight / My head alight / My head alight
Eight repetitions of the same line. No resolution, no new information, just hammering the image until it stops being a complaint and starts sounding like celebration. This is what compulsion looks like in song structure.
The speaker thinks they're describing someone too bright to handle. What they're actually describing is their own willingness to be consumed. By the end, the repetition stops sounding like pain and starts sounding like a mantra. You don't chant something eight times if you want it to stop.