Vegamoviesthedailylifeoftheimmortalkin Best

The core irony of the series is that for Wang Ling, the "immortal path" isn't a goal to reach, but a burden to manage. While other cultivators spend centuries fighting over artifacts and "golden pills," Wang Ling’s biggest struggle is keeping his spiritual power from accidentally destroying the planet. This is managed through a physical seal—an Ofuda or talisman—on the back of his neck that suppresses 100% of his power.