How is Larry's childhood described, as he grows up with his mother's guilt in the story, Larry’s Party?

From the text:

"This is what it's like to grow up with a bad chapter of someone else's story, in the toxic glow of someone else's guilt, a guilt that became a rooted sorrow. He's had his fingers in the mouth of his mother's sick grief and now it's his; every crease and fold belong to him."