Mitsung is a concrete and strict method of thought training, requiring concentration, clarity, patience, and determination, "notes Cheng Yung-chien.
「密宗修持的方法，可以說是具體而嚴密的思想訓練方法﹘﹘訓練意志力集中、思慮澄淨、同時還考驗你的耐心和毅力」，鄭用建說。