Time and Space Farming, Ancestor's Fairy Cultivation Plan

Xiao Tianheng came through time travel and struggled in the world of true spirits for hundreds of years. Looking at the immature Tianling fruit trees in front of him, he lamented that time has not waited for me. Just when he thought he could only wait silently for death, he suddenly discovered that he could enter the river of time and space. From now on, Thousand-Year Medicine King, I will eat one plant and throw away the other. I can have as much medicine as I want. What? There are people who exist in the long river of time? Moreover, their bodies are decaying and their spiritual power is exhausted? I'll give you a spiritual stone in exchange for your magical weapon manual. Isn't this too much? Unknowingly, a small clan on one side developed into an immortal clan of immortals!