DELENN: That is why Kosh cannot leave his encounter suit. He would be recognized.
SHERIDAN: Recognized? By whom?
KOSH: Everyone.
[Later. Delenn has told Sheridan about the Shadows]
SHERIDAN: Z'ha'dum... that's the world G'Kar's been warning us about all year!
KOSH: Sheridan, learn!
[Kosh directs a green beam onto Sheridan, who sees images of Z'ha'dum]
DELENN: The Icarus... your wife's ship... sent to investigate the ruins of ancient race no-one has ever heard of before.
KOSH: Z'ha'dum.
SHERIDAN: Anna... the Icarus... they found something. They woke something up.
SHERIDAN: I let him go. But there is a price tag attached. You've been trying to help me so we can understand each other. That's not what I want anymore. I want you to teach me how to fight them, how to beat them, because sooner or later I'm going to Z'ha'dum. I'm going to stop them.
KOSH: If you go to Z'ha'dum, you will die.
SHERIDAN: Then I'll die. But I will not go down easily and I will not go down alone. You will teach me?
KOSH: Yes.