Ossian while it is true that as sentient beings we do control most of our environment we cannot control every aspect of it I have been practicing Cyokinetics everyday for more then 2 decades I have only generated ice once and the result regardless of the bs conditioning you look up on other sites was that it did damage my hands as far as the firewalk were you walk on coals an 8 year old could do it study physics and you would know that it takes awhile for the surface of the coal to get hot allowing a person to walk across it easily for a while when it does get hot the trick or ceremony is always over but we are discussing Cryokinesis and to an extent pyrokinesis they are equal oppisites but the same goals can be achieved with ethier but it does damage the body in practicing I have found if I dont use it constanty the heat is much worse then it was in the begining my room is always around 40 degrees colder then others and while we are human and control alot of our environment there isnt one human that can stick their hands in physical fire and not get burned or liquid air and not have their hands turn into an oversized ice cube its one thing IMAGINING your hands get cold and another all together actually dropping the temperture we are not all powerful and the laws of of physics DO apply to us our body is where we channel energy our bodies are 90 percent water so if we would use our bodies which is the source of Cryokinetic energy then to freeze water in something else then the water in us would freeze first because it is in us untill we release it you dont suck cold energy into yourself you generate it within yourself by displacing heat kinda the same way a Pyrokinetic can drop the temperture by once again absorbing the heat and displacing it Cryokinetics start by displacing the heat in their bodys to generate lower temperatures and then the channel that through their bodys to use it visualizing and doing are to different things making yourself cold and making someone else cold are two different things if you can do it when a person isnt paying attention or to a skeptic who firmly dont believe it that is one way to know that it works I've done both my limit for resisting cold gets lower everyday but I am not stupid and do not push my luck because I know what it can do to a person even if someone could create ice out of air the ice ball wouldnt freeze its target it would be like a base ball it would hit something and shatter or bounce off not freeze it but as far as using empathy to project feeling of cold on others it is easily done with the energy itself it is difficult even for me and I've done it for a good while like I said I froze a little water once and to this day because of the damage to my left hand I havent had the full range of motion in my hand I've went to the hospital and got it checked out when I broke my foot one time and the doctor said I had nerve damage but he didnt and still doesnt know the reason I used to be one of those people who thought that messing with energy couldnt hurt you well one day I started Cryokinesis and when I overdid it I found out how wrong I was as far as studying other psionics the only other one I could say is Chi dissruption Which I learned in Dim mak training and Aerokinesis and not very much actually very litte Aquakinesis