The more Cairo is skillful at nature magic, the lesser the environment is affecting his mind
Cairo gained some resistance to the comforting effects of the 61st floor while also lessening the effects that the floor already has on him
Cairo regretted it a bit that he didn't train nature magic from the start. If he does that, this floor would have been easier than it is now
Since Cairo discovered the way to resist the soft mental attacks of the 61st floor, he spent time focusing on training his nature magic
Not only did it lessen the mental effects from the tower but it also made absorbing the lifeforce much easier than before
Aside from that, Cairo's already sturdy body is even receiving another upgrade. In the past, Cairo was always getting injured and it was always eating a huge chunk of his vitality