From a response I made to a user some time back who in fact suffered from mental distress:
Those who suffer from ongoing emotional problems should seek treatment or else correct their emotional problems. Strictly speaking, those with emotional disturbances are not welcome, since once they have been corrected to satisfaction, they should no longer be considered emotional problems.
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"The devil I'll bring you," answered Hagen. "I have enough to carry with my shield and breastplate; my helm is bright, the sword is in my hand, therefore I bring you naught."