The Sobbing Old Man only wanted a single thing––the complete ❮Tome of Never-Ending Tears❯.
Song Shuhang remembered that the first time he'd seen the Sobbing Old Man was in space right outside the gate of the 'Crystal-Clear Water Pavilion'.
At that time, the Sobbing Old Man was guarding the gate, hoping to enter the Crystal-Clear Water Pavilion and become their disciple. If he couldn't become a disciple, then he would just become a supporting or external elder. In any case, as long as he was able to gain access to the complete version of the ❮Tome of Never-Ending Tears❯, swearing loyalty to the pavilion wouldn't be a problem.
Normally speaking, a powerful loose cultivator of the Spiritual Emperor rank such as the Sobbing Old Man wouldn't be refused by any sect that he wholeheartedly desired to join.