A chinese word meaning to polish the stone. The first tool used by Homo sapiens, the early mankind, was "stone". At first, the human beings used untrimmed stones, but as time went on, they gradually improved the technique of stone trimming. After passing through the Paleolithic Age and entering the Neolithic Age, elaborately stones were used for various purposes such as farming tools and weapons, and contributed greatly to the development of mankind.
Our hearts are like stones. You have to constantly grind and polish to live the world more abundantly. It is often said that the person who causes troubles around me is in a hurry. Like the Stone of the Untamed Paleolithic Age, the evolution of the mind has not yet occurred. Over time, angular stones become increasingly round and round, but they require a tremendous amount of time. Because our life is not that long, we need to make efforts to improve ourselves.
The great philosophers of mankind have also endeavored and tried to save "Do" or "Idea" until they die. Good working life, marital relationships, and relationships with children do not start from the mouth. It is the starting point of our mind that has been abraded and polished.