How to Cultivate Immortality Scientifically

On how to scientifically cultivate immortality in another world When Lin Yu traveled to another world, he was a master in studying the yin, yang and five elements of heavenly stems, earthly branches, and five elements in his previous life. How to use the Ten Heavenly Stem to increase the speed of cultivation? How to use the twelve earthly branches to produce restraint? How to use the five elements to defend against enemies? Why is there such a big gap between Jindan and Yuanying? When cultivating immortality is an objective fact in this world, then science is cultivating immortality, and cultivating immortality is science! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.