Giving a Talk about Enlightenment

Must be like giving a talk about sex.
You'd want people to assume you've done it,
And if indeed you've done it, done it well.

Well enough you'd not want them to want you.
You'd rather they worked it out for themselves.
And all the while you'd have to be thinking,

Is it possible there is no better
Prophylactic against the actual 
Experience than talking about it?