A psi investigator must train well. But exploring unusual phenomena isn't the only thing to prepare for.
Investigation involves more than knowledge about the reported experience. The investigator must employ emotional states and mental patterns. With or without the stress of any investigation, the individual must have a balanced inner life if he or she wishes to see a positive outcome.
The investigator does not work alone. There are group dynamics, the witness, and family. And then there's the unconscious. Body Mind Metaphor LLC provides counseling and group consultation to investigators.