Aster was really curious about that poison she just used, but before that, they had to find a place to spend the night, though moving at night wasn't forbidden, the fatigue formations increased their intensity at night.
Rushing in is a crime when venturing outside, in this vast cultivation world where unusual situations happen quite often, moving without a plan or any preparation, is a safe way to end one's life.
Of course, preparing for each and every situation isn't possible, but covering the essentials is a must, and this trial is supposed to teach that to the members of the young generation.
So far, they have been shown the importance of never depending on spatial rings completely, then food securing, observation skills and also the importance of having someone with solid knowledge about poisons in the group.