"If the mind is big, everything will be open to you." The next sentence is "If the mind is small, everything will be sick." It means that if you have a broad mind, you can see everything; if you have a small mind, everything will be open to you. Frustrated!

If the heart is big, everything will be accessible; if the heart is small, everything will be ill. ——Zhu Xi

Zhu Xi (1130.9.15-1200.4.23), whose courtesy name was Yuanhui, also had the courtesy name Zhonghui, and his nickname was Hui'an. Later he was called Huiweng, his posthumous title was Wen, and he was known as Zhu Wengong in the world. His ancestral home is Wuyuan County, Huizhou Prefecture (now Wuyuan, Jiangxi Province), and he was born in Youxi, Nanjian Prefecture (now Youxi County, Fujian Province). A famous Neo-Confucian, thinker, philosopher, educator, and poet in the Song Dynasty, a representative of the Fujian School, and the master of Confucianism, the World Honored One called him Zhu Zi. Zhu Xi was the only one who was not a direct disciple of Confucius and was worshiped in the Confucius Temple. He was among the twelve philosophers in the Dacheng Hall who received Confucian sacrifices. Zhu Xi was a student of Li Tong, the third disciple of "Er Cheng" (Cheng Hao and Cheng Yi). Together with Er Cheng, he was called the "Cheng-Zhu School". Zhu Xi's Neo-Confucianism had a great influence on the Yuan, Ming and Qing dynasties and became the official philosophy of the three dynasties. He was another person in the history of Chinese education after Confucius.