On January 26, 2001 a huge earthquake struck Gujarat in western India, killing over 20,000 people and destroying tens of thousands of homes. In response BKS Iyengar sent 15 of his teachers to stricken villages there to offer free yoga to the survivors.  The teachers took with them a sequence of poses devised by Iyengar especially for victims of catastrophes such as earthquakes and hurricanes. (I hope such a sequence is being offered freely in Texas and Florida right now – and, sadly, in many another place around this widely-suffering world.)