Portal
After binding the mana and primordial energy creating plants, he planted them into his soul world, drastically increasing the amount of generated energy in his soul world.
It was still incomparable to his surroundings, but better than nothing.
Furthermore, the more nutrition he gave the plants, the more energy he would receive in return.
This was interesting as they were currently working on the lowest possible level, barely consuming any nutrition from the soil around them.
'Will they wither once the nutrition inside the soil has been fully consumed, or will the plants start to drain nutrition out of my soul world, or rather, myself?'
Finding an answer to this question was important to figure out because he would have to pay more attention to his soul world than before if his assumption was correct.