Guruji, I am a psychologist. I want to know how can spirituality add to my knowledge and make it more holistic.
Meditation can turn around many psychiatric problems.
Study consciousness more deeply. Study the Bhagavad Gita, study Yoga Vasishta and then you will understand more about what consciousness is.
Read the teaching of Lord Buddha and Mahavir. They have spoken about the different aspects of consciousness and the different modules of consciousness. That will also help.