Does heaven exist? With well over 100,000 plus recorded and described spiritual experiences collected over 15 years, to base the answer on, science can now categorically say yes. Furthermore, you can see the evidence for free on the website allaboutheaven.org.

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This book, which covers Visions and hallucinations, explains what causes them and summarises how many hallucinations have been caused by each event or activity. It also provides specific help with questions people have asked us, such as ‘Is my medication giving me hallucinations?’.

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Observations placeholder

Twins and manic depression



Type of Spiritual Experience


Number of hallucinations: 2


In fact, we can learn nothing from this, as we have none of the details of what they did ate or were subjected to.  It may simply be sheer coincidence that the other twin developed bipolar disorder - maybe she had too many food additives or maybe it was the medication, my money is on the medication ............


A description of the experience

J Med Case Rep. 2013 May 28;7(1):134. doi: 10.1186/1752-1947-7-134. Monozygotic twins with early-onset schizophrenia and late-onset bipolar disorder: a case report. O'Reilly R, Torrey EF, Rao J, Singh S. Department of Psychiatry, University of Western Ontario, St, Joseph's Regional Mental Health Care, 850 Highbury Avenue North, London, ON, N6A 4H1, Canada. roreilly@uwo.ca.

INTRODUCTION: Schizophrenia and bipolar disorder are generally considered to be distinct illnesses. One piece of evidence supporting their distinctness is the rarity of schizophrenia and bipolar disorder occurring in monozygotic co‒twins.

CASE PRESENTATION: We describe a well-characterized pair of African American, female, monozygotic twins assessed at 53 years of age.

Case 1: Twin A developed psychotic symptoms at age 23. She was hospitalized and diagnosed with schizophrenia. Twin A was subsequently hospitalized several more times and was consistently diagnosed as suffering from schizophrenia. At the time of assessment, Twin A was single, lived with her parents and attended a day program.

Case 2: In contrast, Twin B worked in a professional career, married and raised a family. She remained well until age 48 when she developed a depressive disorder requiring medication treatment. Four years later, Twin B abruptly developed grandiose delusions and mood-congruent auditory hallucinations. She was hospitalized and diagnosed with a manic episode. Since then Twin B has remained symptom-free on the mood stabilizer sodium valproate.

CONCLUSION: Schizophrenia and bipolar disorder can occur in identical co-twins. We speculate on what it tells us about the meaning of discordance and the putative role of de novo mutations.

PMID: 23714054

The source of the experience


Concepts, symbols and science items



Science Items

Activities and commonsteps