The empirical basis of this article is a part of extensive psychosemantic research involving more than 3000 speakers. The first section attempts to objectivize the relationship between a word's communicative dynamism and its acoustic accentuation. Using psychosemantic methods, it is shown that a word which is communicatively dynamic is always additionally perceived by the subjects as accentuated acoustically. Further psychosemantic experients monitor the influence of rhythmic quality on the process of the phonic line of the verse. The intuitive base for determining the rhythmic quality of words in lyrical representation is also noted. In lyrical theory, the emotive-value (rhythmic) logic of lyrical representation is nearly lacking in scientific reflection. The third section presents the results of research on the rhythmic quality of Czech phonemes, employing Roman Jakobson's definition and Lakoff and Johnson's concept of metaphor. Among 400 Czech speakers, the Czech phonemes are valuepolarized in a psychosemantic field of space-oriented metaphors and distinctive opposites. These findings are then applied to experiments tracing the influence of the rhythmic qualities of phonemes on the phonic line of verse and revealing the parallel existence of rhythmic qualities of words and syllables in the acoustic accentuation of the phonic line of verse.