This chapter reviews some existing publications on self-healing infrastructures and networks, and also existing threats, risks, security, and control needed for healing, which are important for this and the following chapters of the book, then repeats the brief summary of Spatial Grasp Technology (SGT) with its basic Spatial Grasp Language (SGL) in which all chapter solutions are presented. It shows examples of elementary network improvement and describes how after finding known structures like cliques and articulation points with certain types of links the network can be changed, possibly healed. For cliques, this may be by removing clique links, clique nodes, and full cliques isolation too, and for articulation points by adding new links or removing the point at all. It investigates how pattern matching with the network may improve or heal it by deleting the matching, updating with modified patterns, or changing the topology by a particular graph. It also shows how to find the physical centers of specific sub-networks and the distance between them with potential healing applications, and how to guess about the virus source in a networked space or its probable physical location.