Attempting to understand the entire Second Immortality Method in one breath is overreaching, and is bound to lead to failure.
However, if one were to comprehend each small module of the path to immortality individually, and finally combine them, the seemingly impossible-to-perfect Second Method might actually become attainable.
"My path to immortality is the cycle of life and decay, related to life and death... Perhaps you can make use of it," said Chu Pavilion Lord's Dumb Hair. "Then, shall I start the first lesson of observing the Way to Immortality?"
"That's fine, but Senior Chu, although we're quite familiar with each other, I still need to remind you. What you're about to share with me isn't just any Daoist Canon, but the secrets of your own path to immortality. So... during the presentation, if you don't want to disclose any information when I ask, feel free to refuse my inquiries," Song Shuhang earnestly said.