Can a non-believer have a mystical or spiritual experience?
(your words)

YES! (rightly or wrongly) the drug e and the drug lsd has brought me to such a mind state many many times
whereby I felt a loss of self~identity and a richness of perception and reality felt devine . I believe that these buddhist monks were visiting the same place through meditation. Could it be that (like Huxley believed) that the senses are filters that allow only so much *reality*
to flow into our minds however under the Influence of such chemicals or meditive mind states the senses filter (fer lack of a better word) is suddenly opened up allowing the Mystical state to happen. *Maybe* this is something that some only feel at the moment of ones death? Like I stated over on head heritage forum
*my mind has been opened*
o¬)