"As many people as possible should be immune to as many diseases as possible."
"It's a pity I have to renew the preservation touch," she sighs. "It would make my job a lot easier if I could just poke a mortal and un-mortal them."
"Unfortunate," he agrees. "My shared immunities last, but of course they need renewing anyway because there are always new diseases."
"Thankfully," she says lightly, "I'm not stuck with just one manifestation."
"Thankfully, being a god or goddess is often convenient. Often very inconvenient, too, but those tend to be stuff you can compensate for."
Conversation trails off from there. Much later, after exploring has been completed and people have been spoken to:
"How long are you planning on staying in Milliways?"
"I was just going to leave this manifestation here indefinitely," he says. "Collecting disease immunities and perhaps offering to let someone immigrate once in a while."
"... That is a very good idea," she says, after a pause.
She sounds vaguely like she might like to borrow it.
"I think I might borrow it. I can afford to make a replacement manifestation."
"Agreed. I'd forgotten that leaving my manifested form here was an option. I'm not used to parking them places, usually they're travelling all over creation to poke people."
She laughs. "Yes! Very convenient. I can have a body dedicated to sitting. That'll be novel."
"Feel free to tell me if you find someone interesting that you think should be blessed and poked."