The Mountain Man's Cultivation of Immortality

[Mortals cultivating immortality + farming + no system] An inconspicuous rural boy accidentally picked up a piece of magical black cloth. By chance, he entered a nearby sect of cultivating immortals and became a registered disciple. With such an origin, background, and money, how did he gain a foothold in the sect, how did he develop extraordinary cultivation with ordinary qualifications, and thus escape the troubles of the mortal world and be proud of the world!