Mother-In-Law Cultivating Immortals

What does cultivating an immortal rely on? Qualifications? The innate holy body, the blessing of blood, and the eternal push. Luck? The sparrow brings small Ganoderma lucidum in its mouth, and ancient opportunities arise everywhere. Orthodoxy? Confucian sages, Taoist masters, and reincarnated children are all born to leave notes on the immortal list. But if you don't account for one, how can you find another way?