This text explores the semantic and philosophical potential of the archaic Czech term "čivy" (senses/receptors). The author reflects on whether this term could serve as an alternative to traditional, overly objectifying concepts of empiricism, such as impression or sensation. The central argument posits that while standard terminology reduces perception to the passive reception of external stimuli, "čivy" implies inherent activity and agency. The text proposes a conceptual model in which these organs actively respond to elementary physical stimuli, such as photons or sound waves, rather than complex objects like trees or songs. These more complex perceived entities are the result of subsequent processing rather than immediate sensing. The reflection aims to refine the relationship between the subject and the external world through the reactibility of sensory organs. This approach allows for a view of sensory perception as a dynamic process requiring the active participation of the organism at the most fundamental level of environmental interaction.