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.

Available on Amazon
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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?’.

Available on Amazon
also on all local Amazon sites, just change .com for the local version (.co.uk, .jp, .nl, .de, .fr etc.)

Some science behind the scenes

Jaw clenching

Jaw clenching is a side effect of spiritual experience. The correct name for jaw clenching that is involuntary is Trismus.

It can be caused by a number of diseases, for example Pericoronitis (inflammation of soft tissue around impacted third molar) ; inflammation of the muscles of mastication; and peritonsillar abscess, a complication of tonsillitis. But in this context we are interested in jaw clenching that is not a result of illness.

Trismus is a common temporary side effect of many stimulants of the sympathetic nervous system. Users of drugs like methylenedioxymethamphetamine (MDMA), methamphetamine (meth), methylphenidate (Ritalin), mephedrone (4-MMC), and amphetamine for example, get jaw clenching.

But, jaw clenching can also occur to people who do not take drugs.

One of the signs of jaw clench is ‘teeth grinding’ - Bruxism (from the Greek (brugmós), "gnashing of teeth"). Bruxism is typically accompanied by the clenching of the jaw and can even occur during short naps.

Given the vividness of dreams once we have established a spiritual pattern, this may thus be a common side effect of the techniques of dreaming and lucid dreaming. It can also occur as an involuntary side effect during relaxation.