What images of independent jumping are used in the first sentence of Shu Ting's Missing? What are the internal relations?

The use of wall charts, algebra, unicorns, eaves rain, paddles and other image wall charts can make you feel beautiful but difficult to touch. Algebra can understand the feeling but can't find the solution. The strings have sound but sound alone, the rain is like beads but wireless, and the paddles are close to the shore but can't touch the shore. They can be felt, but they are not clear and can't be realized, which just conveys the profound and lingering characteristics of missing.