The method of drawing a mind map is as follows:

1. Draw the first mind map branch at one o'clock in the upper right corner of the center. The area circled in red in the picture below.

2. Determine the branch direction of the mind map according to the branch output. Just draw the number of the four branches in a clockwise direction, and mark the serial number again.

3. After drawing the main branch, if there are still fine branches, continue to extend the fine branches along the main branch and mark the serial numbers in turn. The area circled in red in the picture below.

4. The sequence labeling rules for fine branches are from top to bottom, and the text is written from left to right. The direction pointed by the arrow in the picture below is the direction in which the sequence and text annotations are written.