In this article, I discuss some implications deriving from different models of the notion of border, starting from interdisciplinary contributions and in particular from semiotics, psychoanalysis, cultural psychology, and topology. The starting point is a reflection on the notion of sign, as a device used to realize at the same time both a first form of discretization and to instantiate a system of relations with the environment. The article goes on to describe the importance of borders for the construction of human experience and for the processes of psychic and relational development. Lastly, the differences between three different forms of conceptualizing borders are discussed: rigid boundaries, permeable boundaries, and topological boundaries of the Möbius strip type. For each of the three models, the different implications will be presented and discussed.

在本文中，我讨论了来自边界概念的不同模型的一些启示，这些启示源于跨学科的贡献，尤其是从符号学，心理分析，文化心理学和拓扑学开始。起点是对符号概念的反思，符号是一种用于同时实现离散化的第一种形式和实例化与环境关系的系统的设备。文章继续描述了边界对于人类经验的建构以及心理和关系发展过程的重要性。最后，讨论了三种不同形式的概念化边界之间的差异：刚性边界，可渗透边界和莫比乌斯带状类型的拓扑边界。对于这三个模型，