Confines of language

How do you describe a spaceship to someone who barely even knows what a boat looks like?

How do you explain a bulletproof vest to someone who has no idea about projectiles?

How do you describe the feeling of being drunk to someone who has no self awareness?

How do you describe the sound of the English language?

A few of these questions are pertinent to something I'm writing, and I'd like to see what you guys can come up with.