I don't understand how people explode to bits...

I mean, I would understand it if the explosive was INSIDE their bodies and they explode inside out, but when they explode to pieces by just STANDING near the explosive? For me, I thought that when the person stood Далее to a detonated dynamite или something, the explosion just pushes them back, not disintergate their organs and limbs from their bodies as if they were balloons that just blew up so much they pop. How does this happen?