Disappointment and.... Relief!?

In any case, although Di Tou's Spiritual Sense could in theory stretch out very far without issue, for practical reasons, Di Tou never stretched it out that far, and his 'safe' range was within a kilometer or two, as in this range he could both quickly respond, and have a durability to his Spiritual Sense that allowed it to resist most cultivators below the Nascent Soul Stage with ease.