Samm choy is the same thing as "Santi" but instead the lower hand makes a loose fist on the lowest rib. I started this posture with my lower hand on my cane balancing. This took me several months till i could stand on my own two feet, but the leg strength you get is amazing. This is about the time I started feeling energy in my hands(after I could hold samm choy 15min a side Minimum). Those months where very mentally demanding, this phase taught me most aliments can be healed just through hard work and living uncomfortable(Just know your limits if injured, 80% is a good rule). If anyone has my questions please don't hesitate, there are many more steps I took before I even walked the circle or did any forms.
Side Note: My injury was my lower back all the way down my legs I had avascular necrosis of both hips ,both knees,calf's felt like concrete and walked like a penguin for years with my cane.