"Deeply religious people" is a very broad term. I'm assuming you are not meaning Christian only, for all world religions have deeply religious people, as well as those who nominally claim a faith, but who don't practice it.
My wife and I are deeply religious people, and we trade. So cooldude is wrong in what he says (though I suspect he was speaking tongue in cheek).
I also suspect that handling the pressure is determined by personality, rather than religion or faith. Personality and emotional makeup do not change when one becomes deeply religious. A religious experience does not make one perfect. If one has character flaws at the time of the religous experience, they will still be there after, and will need to be worked on. If one is an emotional person before, they will be one after. If one is even tempered before, they will be after. While a person who has undergone a religious experience may change some things in an instance, such as habits or lifestyle, changes in personality and psyche take time, and in fact they will never be perfected.
If trading is a businessâan occupation, as opposed to a viceâwhy could not deeply religous people choose that as an occupation? It is my wife's occupation, my night-time second job. I find that we do not do as good a job handling the pressure as we would like. But then, I don't always handle the pressure of being an engineer as well as I'd like either.
As for prayer, I have never yet requested that God make one of my possitions go up, or profitable. As with other endeavors in life, I have prayed that God would help me to be the best trader that I can be.
Best Regards,
NDG