Immersion comes from various forms of feedback, some visual, auditory, and other from the interactions. Simply by reading a word, you hear it in your head, and from there then can feel the word being said to yourself after processing it. That is all subconscious. Could these bodily reaction be subconscious and uncontrollable? Could decisions made within an immersed game force people to go against will? I do not think so but there is truly a proven consequence for each action.