https://www.edmondswa.gov/government/departments/parks_and_recreation/programs__classes_and_camps/discovery_programs/explore_discovery_places/yost_park
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/places/parks/city-parks/yost-park/yost-park.md
Fundamentally, in terms of practical application it is a healing technique which is designed to restore the body and to enhance its physical capabilities by balancing, revitalizing and retuning bodily energy flows.