As Ueshiba grew older, more skilled, and more spiritual in his outlook, his art also changed and became softer and more gentle. Martial techniques became less important, and more focus was given to the control of ki. In his own expression of the art there was a greater emphasis on what is referred to as "kokyū-nage", or "breath throws" which are soft and blending, utilizing the opponent's movement in order to throw them. Ueshiba regularly practiced cold water "misogi", as well as other spiritual and religious rites, and viewed his studies of aikido as part of this spiritual training.