“My yoga practice was wonderful and I really enjoyed it, but slacklining really took it to a whole other level, because my yoga mat…all the sudden became one inch wide,” says Dustin Lindblad, who was featured in The Wall Street Journal earlier this year as a woman “walking on air.” So, what exactly does she do and teach? Lindblad slacklines, but not in the way you might think: she performs yoga poses, including kneeling, laying down, backbending, planking, and even squatting while on webbing th