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




Type of Spiritual Experience


Number of hallucinations: 1


Gamma-Butyrolactone (γ-butyrolactone or GBL) is a hygroscopic colorless oily liquid with a weak characteristic odor and is soluble in water. GBL is a common solvent and reagent in chemistry and is used as an aroma compound, as a stain remover, as a superglue remover, as a paint stripper, and as a solvent in some wet aluminium electrolytic capacitors. 

It is also to be found in pesticides and cosmetics as well as domestic cleaning products.

A description of the experience

Przegl Lek. 2012;69(8):544-7. [Gamma-hydroxybutyrate (GHB) and its lactone (GBL) as psychoactive substances]. [Article in Polish] Krajewska A, Kwiecień-Obara E, Szponar J, Majewska M, Kołodziej M. Samodzielny Publiczny Szpital Wojewódzki im. Jana Bozego w Lublinie, Regionalny Ośrodek Toksykologii Klinicznej.

Gammabutyrolactone is included in the solvent such as wheel cleaners, pesticides, cosmetics, drugs.

After ingestion GBL is converted to gamma-hydroxybutyrate.

Both substances are classified as so called "club drugs" and their action is characterized by euphoria, sedation, and induction of retrograde amnesia of events. These activities were basis for the use of GHB and its lactone as rape pill.

Acute poisoning with these compounds causes confusion, agitation, ataxia, nausea, vomiting, nystagmus, dyskinesia, hallucinations, coma, irregular breathing, hypothermia, bradycardia, hypotension, convulsions, respiratory paralysis and thus respiratory arrest.

These substances carry a risk of development of physical addiction of the hard proceeding of abstinence syndrome.

In the USA there is a ban on the sale and promotion of these compounds. In Poland despite the fact that GHB is a controlled substance, there is no regulation of GBL trading. The aim of this paper is to summarize current knowledge regarding the pharmacology, impact on the human body, toxicity, and the effects of chronic abuse of these substances.

PMID: 23243924

The source of the experience


Concepts, symbols and science items



Science Items

Activities and commonsteps