When you heal with Soothing Mist, you have a 35% chance to generate 1 Chi.
Soothing Mist is a monk ability learned at level 10 for those with the Mistweaver specialization. It serves as a cheap and efficient healing spell while giving a chance to generate chi.
Patch 5.2.0 (5-Mar-2013): Soothing Mists now generates chi more consistently and average generation rate is slightly higher.
Patch 5.1.0 (27-Nov-2012): The chance to generate 1 Chi while channeling Soothing Mist and Crackling Jade Lightning has increased to 35%, up from 25%.; The mana cost of Soothing Mists has been reduced by 33%.