From the FAQ at the EMDR International Association website. (If those are just a bunch of letters to you, there’s a tab marked ‘EMDR’ on this website, near the header, with lots information.)
There are 8 phases of EMDR treatment. On to phase 2!
Phase 2: Preparation
For most clients this will take only 1-4 sessions. For others, with a very traumatized background, or with certain diagnoses, a longer time may be necessary. Basically, your clinician will teach you some specific techniques so you can rapidly deal with any emotional disturbance that may arise. If you can do that, you are generally able to proceed to the next phase. One of the primary goals of the preparation phase is to establish a relationship of trust between the client and the therapist. While the person does not have to go into great detail about his disturbing memories, if the EMDR client does not trust his clinician, he may not accurately report what he feels and what changes he is (or isn’t) experiencing during the eye movements. If he just wants to please the clinician and says he feels better when he doesn’t, no therapy in the world will resolve his trauma. In any form of therapy it is best to look at the clinician as a facilitator, or guide, who needs to hear of any hurt, need, or disappointments in order to help achieve the common goal. EMDR is a great deal more than just eye movements, and the clinician needs to know when to employ any of the needed procedures to keep the processing going. During the Preparation Phase, the clinician will explain the theory of EMDR, how it is done, and what the person can expect during and after treatment. Finally, the clinician will teach the client a variety of relaxation techniques for calming himself in the face of any emotional disturbance that may arise during or after a session. Learning these tools is an important aid for anyone. The happiest people on the planet have ways of relaxing themselves and decompressing from life’s inevitable, and often unsuspected, stress. One goal of EMDR therapy is to make sure that the client can take care of himself.