stand blinking

Hi all, please explain to me the meaning of "stand blinking" in this case:

A boy is rushing toward the house and he crashes into the glass doOr.
"It is an explosion. Triangles of glass fly brightly through the room. I think for him it must be more surprising than painful, like hitting water from a great height. He stands blinking for a moment. The whole party stops, stares, getting its bearings. Carlton (the boy who get accident) reaches up curiously to take out the shard of glass that is stuck in his neck, and that is when the blood starts."

Thanks

When someone is stunned, whether from an explosion, a blow, a shocking piece of news or an unbelievable turn of events, that person may just stand in one place and blink his eyes.

It means that 'that boy was so astonished and shocked that he was stuck in that place blinking his eyes only....