Tanjiro, Zenitsu, Inosuke and Rengoku have fallen into a deep sleep while under the control of Enmu's Blood Demon Art. As Enmu attempts to use his accomplices to destroy the spiritual cores of Tanjiro and his companions in order to defeat them, Tanjiro realizes that he is inside a dream and searches for a way to wake up. In order to awaken from the dream, Tanjiro makes a decision to use his sword to cut into his own neck.
It's because the body over there
was no longer my main body.
Es porque eso ya no era mi cuerpo.
Es porque eso de ahí ya no es mi cuerpo.
É porque esse não é mais 
o meu verdadeiro corpo.