Plurality and Complexity of the World of Meaning.- The World of Objects and the World of Practical Meaning: Cognition, Understanding, and Efficacy.- World of Thoughts: Categories and Planning.- The Position of Games and Art in the World of Meaning.- The Meaning of The Meaning of Meaning.- Formal Intuition.- Heterogeneity of the Objects.- Aperception and Appresentation: the Minimum Form of Meaning.- Indexicaity as the Firstness of the Sign.