The Ten-Tails is an extremely powerful being in the Naruto universe. While it cannot be sensed through traditional emotion-detection methods, it can be motivated and strengthened by the presence of chakra from the tailed beasts. It is believed to be following Kaguya's will to reclaim all chakra for herself, making its presence a significant threat. Despite its lack of emotions, the Ten-Tails is notorious for making ten tails noises then something go like this [*TenTails noises* (ten tails i am)]