Jerry: We don't understand death, and the proof of this is that we give dead people a pillow.
George: Do you know how easy it is for dead people to travel? It's not like getting on a bus. One second: it's all mental.
Comment: In other episodes I believe Jerry writes left-handed; in this episode, he wears his baseball glove on his left-hand and tosses the ball with his right hand. Sometimes people write with one hand but throw a ball with another hand (Donovan McNabb and Michael Vick), or maybe there was just difficulty among the props people finding a left-handed glove.
Anyway, this is a slightly dark episode about putting ones' foot in ones' mouth.
There's also a common trend in the show that reveals characters' self-involvement: the cross current conversation. In this case, Jerry and his mother are talking about whether he killed Manya while his father talks about the expense of a flight home.