Tanjiro and Zenitsu head to Himejima's training site deep in the mountains and reunite with Inosuke and Murata. Tanjiro first starts the training by being hit by a waterfall but struggles with the coldness and weight of the water.
I realized something
during this training session.
.أدركتُ أمرًا خلال حصّة التّدريب هذه
Beim jetzigen Training hab ich
zum ersten Mal verstanden,
En este entrenamiento
me di cuenta de la razón por la que
Gracias a estos entrenamientos
he entendido
Après tous ces entraînements,
j’ai enfin compris
Grazie a questo allenamento 
mi sono reso conto di una cosa.
Eu percebi uma coisa durante 
esta sessão de treinamento.
Знаете, за время тренировок
до меня дошло,