The mystery of the crippled boy

The pressure stopped where it was. Liu Feng saw that from the opened up door, a stream of Qi entered the body and went into the maelstrom.

Then, a stream that was thinner, but still substantial, made entirely of pure, golden, viscous Qi, left the maelstrom, flew to the door that was leading to his dantian. 

Liu Feng suddenly shook, and his body started glowing a little. Something happened, and his body that seemed like it was made of plastic, suddenly became more solid. 

His soul was becoming stronger, and it was showing clearly. 

"My cultivation! It is increasing!" he said with shock. In the Core Formation Stage, no matter how much he cultivated, his gains were very low. But all of a sudden, he felt like his cultivation was increasing again. 

The pace was not heaven defying. It was an ant's pace. But it was still an improvement nonetheless. And all of this was coming from him doing nothing!