Our work is dedicated to the philosophical analysis of the "limit" phenomenon. The author considers the "limit" as a clear symbol devoid of content, which expresses the essential sense of the Symbolic. The "limit" is viewed as a base abstraction - the source of reflection of the cognitive and epistemological instrument and the basis of plurality (the perception of the material world variety). As a result of the analysis made on this subject, the author gives the definition of the mind as the essence of life assuming the possibility of individualization in the concrete body (in a single organism) due to the capability to distinguish limits.