For human thought all that exists is that which falls into any of its languages. Thus, for instance, purely physiological processes such as sexual contact or the impact of alcohol on the organism represent physical and physiological realities. But it is precisely these examples which manifest an essential law: the more distant by its very nature this or that domain is from the sphere of culture, the more effort is applied to introduce it into this sphere. 

Without the semiosphere, language not only does not function, it does not exist. The different substructures of the semiosphere are linked in their interaction and cannot function without the support of each other. This is the sense of semiosphere in the contemporary world, steadily expanding into space over the centuries, it has now taken on a global character, and includes within itself the call signs of satellites, the verse of poets and the cry of animals. The interdependence of these elements of the semiosphere is not metaphorical, but a reality. 

Juri Lotman “Semiosfäärist”. Rmt: Semiosfäärist. Tallinn: Vagabund 1999