I once was the only guy at a mindfulness meditation retreat, but this was not as terrific as you might think. If your goal is real-world contact, sitting still and doing nothing for a week among 30 or so women you'll never see again -- except at another retreat where you'll sit still and do nothing -- is far from ideal.
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http://www.huffingtonpost.com/michael-sigman/letting-go-of-goals_b_1000212.htm