Even if Esteban can't be seen, Zelgadis knows the one helping to guide them, the face that Tidus is focusing on much as he is Zelgadis's presence. Red hair, tanned skin, a grin as excitable as the body of the half-elf that owns it (not that Tidus knows he's a half-elf-- he's just Esteban, in his mind).

In his emotions, Esteban is their help back, as sure and steady as the lampposts that guide them; Zelgadis the guy he wants to get back, a familiar soul, even if they don't know each other well. But he wants him safe and sound all the same, and if any feeling of longing does come through to Tidus, there's reassurance that comes from him, wordlessly spoken:

You'll see them again.

"Yeah, we're good," is answered through the link, an exchange heard to all. The world of colour and the siren song attempting to entice Zelgadis lessening, as they see in the lessening distance Esteban. Him and with the train behind him, the last of the way until they're there.

They just have to keep pushing forward.