The title, Hair Like Snow, is neither a song nor a tune. It is the ultimate image of the heroine, Shen Qingyan, after she burns through her Lihuo bloodline and her black hair turns white as snow. This is a story about "mistakes": mistaken identity, misunderstandings, and a mistaken pursuit of immortality.
One mistaken identity, and hair like snow; a lifetime of immortality, and a life gone astray.
She let her black hair turn white as snow for him; he squandered his immortality for her.
Hair Like Snow is the ending, while the mistaken pursuit of immortality is the cause.
It is also the awakening a woman won at the cost of hair like snow.