Everyone experiences hypnosis differently to some extent. You’ll already know what light trance feels like as you experience it many times a day, when day dreaming for example. Even at the deeper levels induced by hypnosis, most people will be conscious and aware throughout the experience though some forgetfulness is common as you drift up and down through the different levels of trance. Different people will generally tend to frequent different depths according to how responsive they are, though most will achieve medium or deep at some point. Regardless of depth of trance, the experience is often described as deeply relaxing and at times blissful.
Here's how one of my clients described the experience: