The present article analyses one of the fragments of naïve psychology – conceptual WAVE metaphor related to the Lithuanian language world-view. The approach to language which is close to cognitive linguistics is taken into consideration: it is referred to cognitive theory of metaphor, that allows to describe the characteristics of abstract phenomena by employing their relation to this what is concrete and understandable and what is fixed in language world-view. On the basis of the names of internal life phenomena as well as word combinations with different forms of the word wave, collected from Contemporary Lithuanian Language Corpus, those phenomena of the domains of feelings and emotions are described, which in the Lithuanian language world-view are perceived as waving.