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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


Cocaine is obtained from the leaves of the coca plant. The name comes from "coca" and the alkaloid suffix "-ine", forming "cocaine". It is a stimulant, an appetite suppressant, and a nonspecific sodium channel blocker, which in turn causes it to produce anaesthesia at low doses. Biologically, cocaine acts as a serotonin–norepinephrine–dopamine reuptake inhibitor, also known as a triple reuptake inhibitor (TRI).

According to Wikipedia 'It is addictive because of its effect on the mesolimbic reward pathway. It is markedly more dangerous than other CNS stimulants, including the amphetamine class, at high doses due to its effect on sodium channels, as blockade of Nav1.5 can cause sudden cardiac death'


A description of the experience

Prevalence and risk factors of psychotic symptoms in cocaine-dependent patients. Roncero C, Ros-Cucurull E, Daigre C, Casas M. CAS Vall Hebron, Servicio de Psiquiatría Hospital Universitario Vall Hebron-ASPB, Barcelona, Spain. croncero@vhebron.net

OBJECTIVES: Cocaine consumption can induce transient psychotic symptoms expressed as paranoia or hallucinations. This work reviews that evidence and tries to obtain data regarding frequency of psychotic symptoms or cocaine induced psychosis (CIP), risks or associated factors.

METHOD: Systematic review of studies found in PubMed database published until January 2011 where cocaine induced paranoia was present.

RESULTS: Cocaine induced paranoia has a particular clinical presentation. It needs to be clearly identified due to its harmful consequences. The prevalence is between 12% in clinical studies and 100% in experimental studies. The following are considered potential risk factors: age of first use and length, amount of substance, route of administration, body mass index, genetic factors, personal vulnerability and comorbidity with AXIS I (psychosis, ADHD) and AXIS II disorders (antisocial personality disorder).

CONCLUSIONS: It is needed to research with larger samples of cocaine users of different countries and contexts, in order to identify and detail what variables are closely related in the development of cocaine induced paranoia, so the population at risk can be treated earlier.

PMID: 22851479

The source of the experience


Concepts, symbols and science items



Science Items

Activities and commonsteps