I cant say about enlightment, but vipassana surly brings the god energy in your mind.... this is best way to do any meditations.... I m thinking of going there sometime later...
*looks around* *seems safe to post again* Here's a good article on how meditation works: http://here-and-now.org/VSI/Articles/TheoryMed/theoryHow.htm
Pema Chodron has lots of good articles on this site: http://www.shambhala.org/teachers/pema/meditation1.php
Meditation as a Voluntary Hypometabolic State of Biological Estivation: http://physiologyonline.physiology.org/cgi/content/full/13/3/149
Genomic Profiling of Neutrophil Transcripts in Asian Qigong Practitioners: A Pilot Study in Gene Regulation by MindâBody Interaction: http://www.liebertonline.com/doi/abs/10.1089/acm.2005.11.29