Deep powder is a religious experience, and it takes just one perfect day of blue skies and bottomless snow to become a pious worshiper. From Alyeska to Taos, powderhounds feverishly monitor weather reports for the next big storm, and after spending a weekend skiing 12,000-foot ridges in Telluride, we know exactly why: powder skiing is as close as man can get to flying in the mountains.