Garden
The difficulty of the task was much greater than if the forest was merely two-dimensional. But alas, it was not to be that easy. He definitely understood that this was a feature of the challenge, not a flaw.
In order to find the Hypnomaster, one needed to possess a powerful mind, or one needed to possess extraordinary perseverance and determination. In both cases, there was a good chance that the Hypnomaster would accept them based on those traits, so it made sense that there was a challenge the key to which were such traits.
Rui didn't spend too much time dwelling on too many thoughts despite how out of character that was for him. Thought consumed mental energy and within the Great Forest of Hypnonarak, mental energy was a precious and vital resource that dwindled by the second.