What is the relation between feeling of mighty spiritual power moving inside chest of the person and after that had hallucination and schizoaffective?

See below: In general, psychosis is an inability to distinguish reality from non-reality. Psychosis is a symptom found in a variety of medical/psychological conditions. Hallucinations (which are one type of psychosis) are sensory experiences in the absence of an external/internal stimuli. Fixated (psychotic) beliefs about having unusually grand (at times religious) influence can be see in schizoaffectives.

Psychosis: Psychosis in the context of mood disorder is not uncommon. Follow up with your doctor for assessment.