Hypnosis is a state of human consciousness involving focused attention and reduced peripheral awareness and an enhanced capacity for response to suggestion. The term may also refer to an art, skill, or act of inducing hypnosis. Theories explaining what occurs during hypnosis fall into two groups. Altered state theories see hypnosis as an altered state of mind or trance, marked by a level of awareness different from the ordinary conscious state. In contrast, nonstate theories see hypnosis as a form of imaginative role-enactment.
tercet. n. 1. (Poetry) a group of three lines of verse that rhyme together or are connected by rhyme with adjacent groups of three lines. [C16: from French, from Italian terzetto, diminutive of terzo third, from Latin tertius ].
You might be able to get some sort of sense of what this poetry encompasses just by looking at the name of it. The lines in these types of poems are arranged in what are called tercets.. What this means is the lines come in groups of threes. That does not mean that the poem is only three lines long. There can be multiple groups of three lines.