Sam went back to the dorm after the shopping. He doesn't have anything to do for the next few days, they don't have any restrictions on their movements here so all the candidates are free to do whatever they want to do.
He stayed in the dormitory and didn't come out.
He spent his time cultivating and since he doesn't have many bottlenecks, he entered the third level of Great realm in next four days.
Apart from that, he focused on his body cultivation and this time, Sam actually experimented on something and discovered an interesting concept.
On the next day of the breakthrough, Sam decided to catch up on his body cultivation, but this time, he made use of light elemental energy instead of the normal spiritual energy.
The effects that came are something he didn't expect.
He could feel his body accepting the elemental energy and getting tempered by it and at the same time, he could feel that elemental fusion became a lot easier.