Guna

depending on the context means "string, thread, or strand", or "virtue, merit, excellence", or "quality, peculiarity, attribute, property". The concept originated in Samkhya philosophy, but is now a key concept in various schools of Hindu philosophy. There are three gunas, according to this worldview, that have always been and continue to be present in all things and beings in the world. These three gunas are called: (goodness, constructive, harmonious), (passion, active, confused), and (darkness, destructive, chaotic). All of these three gunas are present in everyone and everything, it is the proportion that is different, according to Hindu worldview. The interplay of these gunas defines the character of someone or something, of nature and determines the progress of life. In some contexts, it may mean "a subdivision, species, kind, quality", or an operational principle or tendency of something or someone. In human behavior studies, Guna means personality, innate nature and psychological attributes of an individual. There is no single word English language translation for the concept guna. The usual, but approximate translation is "quality".