The work is a realistic novel depicting the spiritual mapping of contemporary youth. The heroine Yang Di found a blue diary at a scrap station, which recorded Qingsong's tenacious monologue amidst poverty, academic and emotional difficulties, a rural surveying and mapping student. These words are like heterogeneous seeds, giving birth to a strong pursuit of "soul identity" in her heart. However, cognitive bias caused her to make a miscalculation that lasted three years - she anchored bank employee Yu Yi as the author because the worldly success and decent path she showed perfectly fit the vague "excellent map" in her heart; but the real writer Qing Song, the young man who measured the land with his footsteps and used instruments to stick to the truth at the grassroots level, was filtered by her unconsciously into irrelevant "error points".
This "referring to a deer as a horse" reveals that we are accustomed to using the external ruler of the material aura to measure the inner depth, but we neglect to activate the inner compass. Yang Di's misunderstanding and subsequent awakening, Qingsong's almost paranoid persistence in "truth" in his ordinary position, and Yu Yi's return to the true nature of life after experiencing "adjustment" in the emotional relationship defined by capital. Three clues are intertwined to form a detailed spiritual contour map. The novel uses the terms "error" and "adjustment" in surveying and mapping as its core metaphors, asking layer by layer: In the hustle and bustle coordinate system of the times, how do individuals identify illusory projections, and how do they ultimately find the "datum point" where life can be solidly settled through personal experience, recording and correction? It is a collective field investigation about reality, dedicated to all explorers trying to draw reliable maps for themselves in the wilderness of life.
Purpose: Through the misrecognition and re-examination of the soul, it is explained that the true self-coordinates originate from the persistence of reality and inner experience, rather than the illusory aura of the external world.