Main introduction:
Low and high dimensions are like two people in the same world but different regions. One is always unlucky or often depressed, and the other is always lucky or always happy.
One person's frequency will attract people with different frequencies. The less frequently a person appears, the more likely you are to meet someone who will bore you. The higher a person's frequency, the more he will meet people with high frequency, and will not intersect with people with low frequency.