Purification of the mind, body, and spirit.
Aikido training may be looked upon as a means of purifying oneself; eliminating defiling characteristics from one's mind or personality. Although there are some specific exercises for misogi practice, such as breathing exercises, in point of fact, every aspect of aikido training may be looked upon as misogi. This, however, is a matter of one's attitude or approach to training, rather than an objective feature of the training itself.
Misogi Kokyuho is a practice of the founder of ki-Aikido.