What do you mean the world of mortals is always a dream?

It means don't be fooled by the debauchery in life. After all, this kind of drunken life is illusory, and it is inevitable that you will feel empty and lonely after spending money. It is better to concentrate on your career and work hard for your ideals, so that you can finally achieve something.

"Beautiful eyes" refers to the bustling and noisy scene, full of all kinds of temptations and confusion. People are often easily attracted by these flashy worldly things and lost in numerous desires. "Common things in the world of mortals are always dreams" means that the disturbances and secular desires in the world are illusory, just like dreams. They cannot bring people real satisfaction and inner peace. The poem expresses doubts about material enjoyment and external pursuit of fame and fortune, hoping that people can transcend these superficial glitz and pursue inner peace and real meaning. The whole poem can be understood as a reflection on secular desires and flashy life, reminding people not to be confused by external temptations, but to seek real inner satisfaction and peace.