From AN 3.39 :
If the circumstances are right, then one who reaches the crucial point expressed in the above verse would probably become a wandering ascetic, taming the mind and eradicating the attachments that lie within. But, even if there are constraints that prevent one from taking up an alms-bowl, this sense of complete disillusionment with life and the world can still be present in one’s mind. And one sees clearly that dilution of the path to justify one’s actions and activities results in subtle ego-gratification - it makes one think: the attachments which I cling to, the pleasures of the world which I relish, they are all good and exalted and profound, while the things that other people seek are low, vulgar and coarse. The Buddha’s teaching, on the other hand, makes no such compromises - all sensual indulgences are seen as ephemeral mirages that agitate the mind.
In my case, I find that the feeling of being detached and withdrawn from all worldly things oscillates between strong and weak - especially when comatose episodes brought on by diseases leaves my mind in a state of sluggish unrest and I feel battered and tired.
So, how far can the mind be taken if the robe is not a possibility ?