Xiao Buli had already considered how to upgrade his Taoist Heart for quite some time. From the moment he had comprehended the Heart of Life and Death, he understood that evidently, the advancement of the Taoist Heart level required undergoing different life experiences and gaining various life revelations. Since he could obtain the Heart of Life and Death between life and death, then other diverse life experiences should probably have similar effects.
For this reason, he even specifically started a thread online. Naturally, he didn't expose anything about this game but instead chose a rather obscure way to do so, claiming he wanted to write a cultivation novel and skillfully projecting his current situation into it, he collected opinions from netizens.
As a result, he naturally gathered quite a bit of information, with some suggestions looking rather reliable.
First was the death of a loved one, which might improve the level of the Taoist Heart.