I think one of the biggest illusions that needs 'dis'ing is that its a bad thing when illusions become disillusions. To state otherwise is analgous to supporting the idea that ignorance is bliss. Disillusionment is one step closer to the idea of enlightenment.
If it truly is an "illusion" then it should be a good thing when it gets "dis"ed.
But I know what you mean and when it does happen (and it has), I'm usually not in any mood to intellectualize it - I'm too busy feeling sorry for myself.
But, I'm a little wiser as a consequence (assuming that I'm not deluding myself).
