I thought it would be good to point out the difference between consciousness work, such as meditation and certain types of spirituality, and mental health. Although there are some overlaps as it does deal with your mind, it's occurred to me that mental health is primarily concerned with the psyche, and in that sense it might be considered a type of specialization in terms of a particular work dealing with human consciousness. While things like meditation can help give you a degree of peace - and sometimes lasting shifts in consciousness - it would be good to understand the difference.
These days meditation is becoming more popular, and people are attracted to paths like Buddhism for the same reason, but it really isn't a substitute for mental health care. The reason why it 'works' sometimes is because it deals with the mind at a deeper level, and so if one goes through it all the way it can render problems of the psyche irrelevant. However, if that is not even the intention in the first place, then it is possible that it can intensify (which I would distinguish from worsen) the pathological experience.
More specifically, if there is a readiness or an actual movement toward a state of consciousness beyond ego, then the role of some kind of contemplative practice becomes relevant - which is not to say it is the only thing needed. But on the other hand if there is no such movement or readiness, then it only makes sense to deal with things on the egoic level and a process of integration to bring about some coherent sense of self in that way. In fact, I would say depending on where someone is at on "the spiritual path", you would want to do both to cover your basis - if they are really digging into consciousness. Furthermore this has nothing to do with belief, someone may take Buddhism as a religion but the state of consciousness can be equal to something like the average Jehovah's Witness or something.
Now there are therapists who are knowledgeable in both out there these days, and beside the concern of whether they understand it on more than an academic level it just goes to reason that depending on where the client is at someone with specialized expertise on where they're at would be better at sorting things out there. But I'm sure these therapists are helpful for people who are kind of in between or in transition, and I expect to come to know more of them in the future so it should be interesting to learn about the kind of work they do.