Regressiontherapy scene 

Past life regression is a spiritual psychotherapeutic practice in which a patient is brought under hypnosis in order to talk through past-life events. This in hopes of fixing current psychological issues by resolving previous events. 

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While hypnotized, the patient gets asked questions that help identify their past selves. It isn't necessary to have memories prior to the session.

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It's one of the more controversial therapy methods out there.