The explanation of directional cultivation is to make use of a certain living environment to make the genes of animals or plants change in the direction required by people, such as increasing yield, improving cold tolerance and disease resistance. Explanation of word decomposition orientation The choice of orientation or direction in topological space. Perception of current time, location and human recognition: relative orientation, such as compass or landmark, explains a certain direction in detail; Purpose, goal. Wang Ming Shouren "University Question": "Now I know that the best is in my heart; The explanation of seeking outward cultivation is to cultivate young creatures, make them grow and develop, cultivate excellent varieties, develop certain feelings, cultivate friendship, cultivate education and cultivate new people. Qin Mu's Flower and Artistic Style: "People have cultivated thousands of chrysanthemum varieties. "refers to