A procedure through which one person uses the power of suggestion to induce changes in thoughts, feelings, sensations, perceptions, and behavior in another person is referred to as

I believe the answer is: Hypnosis

The main purpose of a hypnosis is to alter the conscious thought that people have which eventually make them perceive reality in a completely different way.

Up to this date, even after proofing its existence, science still hasn't be able to explain why and how hypnosis could happen.