I think that there is a general respect for people's spiritual beliefs within the psych professions. However, I have known of an instance where people with particular spiritual beliefs have been treated like guinea pigs for experimental psychiatric 'investigations' (for want of a better word) or experimentations with anti-psychotic medications.
There are those people that might believe (for example) that they have had a past life - a popular mythical vanity and if you read tabloids and women's magazines there are psychics telling their readers all about how to 'contact their angels' and know what 'past life' they had.So, it seems to me that people can have these spiritual 'fancies' -as long as they don't take them TOO seriously and end up in a psychiatric institution on anti-psychotic medications.
On Christianity (for example). There are many poor souls in psych wards who have the delusion that they are "Jesus Christ", and we, who are interested in psychology matters, might be aware of hearing (or knowing) of someone who had a 'god' delusion. From there, religious beliefs can be less 'extreme' to an actual manifest. For instance, speaking in tongues. Is this a real spiritual manifest or just people off their nut? I personally have been in a charasmatic church meeting where I have witnessed it and other interesting phenomena.
And so, to come back to the question. There are those in the psych profession who have no credibility in any spiritual 'claim' or manifest. And, in so doing, will approach a patient from a background from their own specific learning. Psychiatrists are only men or women, but, unfortuately some of them have a great deal of influence over individuals or the patient's families by which to understand or commit to psychiatrict care.
I have to laugh, really, the world is so strange. There are many books out by charasmatic church leaders, some of who claim that they are a prophet (for example). Now, if such a person was doubted to this personal claim and brought in for psychiatric evaluation, who would believe it, given that psychologists and psychiatrists are people of learning? YET, there are many charasmatic believers who say 'so and so' is a prophet of some god - and thus this form of spirituality is 'accepted' within the world of that particular religious group.
In my own investigations I have looked into the spectrum of psych care professionals who either give credit to all manner of spiritual beliefs - and thus give the leeway - and to those who will fully discount religious beliefs as they (the beliefs) are espoused by a patient. Surely someone who says that they are 'Jesus Christ' or a reincarnation of the prophet Mohammed are people who are having a state of psychic crisis and do need help. Psych professionals, who have seen enough of this, might be tempted to throw the baby out with the bathwater.
But who amongst psych professionals might be sympathetic enough to be able to help patients who are going through a psychic crisis (for eg) without keeping them perpetually on anti-psychotic medication and not dealing with their root issues that would (one would reasonably think) need deep psycho analysis.
In my opinion, to discount religion and spirituality is like flying in the face, of what makes us human -even atheists have their own creed. Studies have shown (apologies for I do not have a citation) that people with a faith are less likely to be stressed - but those that have a pet also show less stress! So living with a 'faith' is better than living in state of 'fear' and what the future or current circumstances might hold.