Since those at the Harmonization Level need to cultivate in blessed lands, the elders stationed here by the Dao Sect are rotated; after guarding for a period, they can return to the Dao Sect. However, Song Qingsong reported to the sect that Li An was most familiar with the environment here, and since his primordial spirit was flawed and didn't require blessed lands, he should be stationed here permanently.
Clearly, Song Qingsong didn't want to allow Li An to return to the Dao Sect, leaving him here to fend for himself.
Li An willingly accepted this outcome.
He didn't mind, as he could absorb the power of the Great Dao anywhere he stayed.
The island was protected by a great array, and there were disciples to handle daily affairs, so as an elder, he found himself quite at leisure.
"Madam, as the years have gone by, you've grown even older."
