Cultivation in the World

What is meant by cultivating immortality and cultivating truth? Why is it so powerful? What does it mean to work so hard and spend your whole life? What is an immortal? What is Tao? Are we really cultivating immortals? . Why cultivate immortality. Show off. Imagine being as suave and awesome as those experts. Then all kinds of pretense. Sorry. ,,, This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.