This wisp of Yu Qing Immortal Light might have been nothing to the Primordial Heavenly Sovereign, but for Jiang Chen, it was an exceptionally precious treasure.
The Dao Mirror had the ability to reflect all things, tracing them back to their origins. By placing this wisp of Yu Qing Immortal Light within the Dao Mirror, one could trace its source, deduce the Way of Yu Qing in reverse, as well as the Path of Pangu's spirit integrated within it.
Even just a hint of deduction would be an unimaginable fortuity for Jiang Chen, enough to help him make up for his deficiencies and perfect his own Pangu's spirit.
"A blessing may rely on misfortune, and misfortune may dwell on a blessing. Not obtaining the Sun, Moon, and Stars Map for now might not necessarily be a bad thing for me," Jiang Chen mused.
