Incandescence
Deidara can easily say he will give his life to his art, when he dies. He's not sure if that's going to be sooner or later. It can't be too much later though. Deidara isn't going to die old.
But there will be things he misses.
He would miss his partner, only he's dead now too, so that's not too bad.
He'll miss the bombs, and the clay, and the aftermath, and the sound of it all.
He'll miss the explosions, and the pain, and the way Sasori died, and even the way Sasori lived.
He might even miss the wind.
There will be things he misses, sure, but he'll still die without a doubt in his heart.
Why?
Because this is what he does.
Because art is a bang.
Because he'll always love the explosion more than a human.
Because this is all he needs.
Because.
And he knows people will think it's insane. He knows they'll be confused about why he's excited about it. And he knows Sasori would hate him for doing this.
The last one hurts the most.
But he loves this, and he loves his art, and he loves people's screams of horror. So he'll do it. He'll make it to that point. He'll kill himself. And it will be beautiful. The colors of the explosion will be the last thing he sees, and the scream of the bomb will be the last thing he hears.
His two favorite things in the world.
And if he's lucky, his death might even be as beautiful as Sasori's.
If he's really, really lucky.