Literature Reference: Looking forward to the Crown Prince Hui, with his attendants in full regalia. Yet, glancing back at Lady Qi, her Chu dance lacked its usual brilliance. Without plotting a single strategy, nor uttering a word, he secretly secured the foundation of the empire, thus safeguarding the Liu family from peril. Zhang Liang was capable, but this was beyond his understanding. The path of the master was already illuminated, yet the Crown Prince's humility was profound. The imperial carriage could not retain him; success achieved, he departed as if discarding it. Like the clouds in a drought, one rain nourishes all grains. The benefits spread across the land, and the clouds return to their sparse abode. Do not elevate Chao and You, nor overly esteem Lu and Yi. Chao and You departed without return, Lu and Yi left without coming back. How could they compare to the four masters, whose paths were both straightforward and winding? Why must one always retreat into seclusion, or always strive to save the world? Since ancient times, the way of the sage has been unfathomable. Rolled up, it does not fill the hand; stretched out, it spans the eight directions. The master's path was clear, yet even Confucius might have doubted. I wish for you to discern its perplexity and recite this poem for me.