My theory is that both Christianity and Islam exists because of the fact that deep prolonged mediation causes hallucinations and psychotic experiences. Why? Because God talked to both Jesus and Muhammed while they where meditating in the desert.
It can be useful to speculate, but I think you're not that familiar with what meditation in the Abrahamic religions looks like. Meditation in the biblical sense is to think deeply about something. Meditation in the eastern religion sense is to not think about anything. Those two are basically polar opposites and the psychological / neurological effects of the latter cannot be achieved by practising the former. (vario…
book: kenneth s leong the zen teachings of jesus
the silent prayer was also.identified with the "desert fathers" who have shaped much if the foundations of early Christianity.
silent prayer is a "come and see for yourself" approach, shifting the ownership of religious truth from the teacher as nd the church defining it to the individual discovering it through "discernment of the spirits", "in Christo".
silent, contemplative prayer is dismissed by some literalist and evangelical Churches as "satanic", "diabolical", "umbilical", but hey, what isn't :-)