If Lu Zhou did not prepare enough Reversal Cards before he attempted the Nine-leaf stage, similar to his host, he would have rapidly aged and died as a result. The golden lotus' ability to absorb one's life force was truly terrifying.
He suddenly recalled Gong Yuandu, the sword path genius of the northern capital, even went as far as to remain inside a coffin in the Swords Mausoleum for 100 years just to attempt the Nine-leaf stage. In fact, 100 years was nothing to an Eight-leaf golden lotus cultivator. Gong Yuandu's experience was not meaningless. Gong Yuandu had revealed the fact that golden lotuses absorbed cultivators' life forces.
Lu Zhou remembered the leader of the Three Sects, Yun Tianluo, as well. He lost many years of his life trying to reach the Nine-leaf stage. He even sealed the memories of his attempt inside a chessboard. From that, Lu Zhou confirmed that golden lotuses truly absorbed cultivators' life forces.