Physical body is the inversely proportional index of capacity
Let us underline that a health of physical body is the inversely proportional index of capacity for the output of astral twin: what body, the it is easy to go out twin. Will mark also, that instrumental in a rapid exit from a body extraordinary cold or heat, fatigue and exhaustion, trauma of head, loss of blood, shock, crisis of illness is all violates integrity of physical body and his astral twin. Plato talked yet, that nasty illness was instrumental in appearance for the man of supernatural forces. And William James asserted that temperature 57 degrees on Celcius friendly to cognition of Truth.
Asceticism, long sexual abstention, volitional suppression of other physical desires also conduce to the output of astral body.
Most widespread method of output in, in-use searching people for cognition of truth is post-modernism (starvation). He is the easiest, most useful to the physical health and most harmless for thin bodies. On fourth days starvations are it is not desirable already. There is clearing of all layers of man on the thirtieth days of starvation. Siddkhi appear on the fortieth days of the correctly conducted post-modernism: clairvoyance, telepathy.
Insomnia or violent vigil result in other states of rational mind: three white night - and a man loses sense of orientation in space and time. If not to sleep farther, then a shrivel will appear in eyes, and then halos or misty appearances are seen round objects, which can move, broaden or compress, they living as though. All of it is accompanied chaos of ideas, auditory and visual hallucinations. It can seem that on a skin enormous insects creep or gnomes and hop-o'-my-thumbs, anchorwomen appear itself uttery aggressively. Such middle unprepared man not able to survive, and if to continue insomnia, then he quickly will go mad.
It is near resemblance between psychical fantasies of hermits, givings the vow of celibacy, by sleeps exhausted to despair of prisoners in single chambers and by hallucinations those, who was exposed to the violent vigil. All of them see, hear and feel alike senses in other thin measurings.
A climactic point of Dedication in the mysteries of the different closed esoteric societies is an output of astral body in complete consciousness. Dedication is conducted during many months of studies, that an adherent was able to outlive experience which will happen with a man subsequent to his death. Therefore in world religions there is the protracted and monotonous psalmody and mantras, defiant disappearance of logical test above reason. Endless bows, singing, howlings - have for an object to cause physical exhaustion, reduce maintenance of oxygen in blood, the same causing the state of trance. On these reasons every religion for most men of the common people is an universal mean, opening a road to other measurings.