As a unique subcultural phenomenon in the digital age, youth "abstract culture" profoundly influences the expression and spiritual world of contemporary youth through its decentralized, anti-logical, and highly context-dependent symbolic practices. At the level of symbolic production, abstract culture has formed a unique system of meaning expression through the gamification shift of linguistic symbols, the meme-based dissemination of visual symbols, and the construction of symbolic systems within specific circles. In terms of its spiritual core, abstract culture reflects the decentralized shift in youth cognitive patterns, the alienated state of emotional expression, and the existential predicament of "spiritual wandering." At the level of generative logic, the technological shaping of platform algorithms, the emotional projection of social anxiety, and the subjective responses of youth groups collectively constitute the underlying motivations for this phenomenon. To guide the development of youth culture, it is essential to critically evaluate the dual effects of abstract culture and take action from four dimensions: enhancing media literacy, guiding value reconstruction, fostering authentic expression, and expanding the space of meaning. This approach aims to stimulate youth cultural innovation, cultivate a positive mindset, clarify expression boundaries, and continuously enrich their spiritual worlds.