In threatening a real crackdown, though, he also let a little truth slip in:
Try to forget about politics and remember spirituality. This is the way to gain freedom. From the beginning the revolution was based on the strength of your faith.
Patience, courage and, most importantly, faith are the biggest weapons the protesters have in their arsenal. The will of the regime is fragile, and it will shatter on that rock if they can remain strong.
And, just to put on my rose-coloured glasses for a moment, maybe that was Khamenei's attempt to rationalize what he figures to be the almost inevitable outcome of it all. If the protesters win, won't they be the true heirs of the 1979 revolution? Won't they be saving its ideals from the corrupt path it has taken over the last 30 years?