The location of the treasure that Yun Jhin wanted to get his hands on was quite far away from their current location, they could have easily got there if their cultivation bases were a little bit higher but with their current power, all they could do was run there.
Yun Jhin could keep up with his former reincarnation speed and he was currently having the three little beasts in the basket tied to his back instead of his former reincarnation, he said that he wanted to use the weight of the basket to continue his training, while the earthly realm consisted of absorbing ki to temper the body, doing normal exercises could also contribute to the increase in the realm, as long as they were intense enough.
As time passed the weight of the three fluffy balls weight started to increase so they could be useful for Yun Jhin's 'training'.
He was just finishing his touches on the mind control of the three beasts this way.
