What is Psychosis? Psychosis may occur because of a psychiatric illness like schizophrenia. In other instances, it may be caused by a health condition, medications, or drug use.Possible symptoms include delusions, hallucinations, talking incoherently, and agitation. The person with the condition usually isn't aware of his or her behavior.It is Richard's conclusion that many of God's children are lost and don't even realize their condition. This book seeks to clarify our relationship with God and His family so they seek redemption through His blood and receive the forgiveness through His Son Jesus Christ.