In the past decade, Lin Yun had also been constantly preparing to break through the new Layered Heaven in the Netherworld.
Firstly, he had his avatar break through to the middle Divine Realm in the Netherworld and reach the limit of the middle Divine Realm.
Otherwise, it might be fine for the 63rd layer of the Dead Silent Universe, but the 72nd layer had powerful defenses and was not easily destroyed; if his main body went to the Netherworld to slash through the New Layered Heaven while his avatar in the Spirit World was destroying the Dead Silent Universe, and if the avatar's realm was only at the lower Divine Realm, it likely wouldn't be enough.
Secondly, during these ten years, Lin Yun's avatar had always stayed in the Netherworld, using the balanced Yin-Yang Power to influence the numerous Ghost Practitioners and spirits.
