Aikido masters and instructors believe that the energy can only truly flow in its complete potential energy when one is relaxed. The ki flows freely and smoothly in the relaxed state. This is the reason why being relaxed and calm is taught in aikido practice. This ki is a force that is very strong and fundamental. It is believed to be superior to muscle and physical strength, which sometimes hinders the ki.

In fact, in aikido, instead of muscle and strength building, flexibility and endurance is part of the aikido martial art training. Now, it said that to be able to truly harness the power of the ki, it must be allowed to flow. It can only flow properly within us when we are in a relaxed state. The relaxed state cannot be built like muscles through exercise. A spiritual journey must be taken upon by an aikido student to be able to achieve the state of calm and peace that is vital in combat.