First, it is important to understand about what exactly is a core value, it is a PRINCIPLE that guides an organization's internal behavior as well as its association with the outer world. Core values are usually summarized in the mission statement or in a statement of core values. Scaled Agile FRAMEWORK is based on both Lean and Agile principles. SAFe supports four Core Values: alignment, built-in quality, transparency, and program execution, as illustrated in Figure below: 

These core values make sure that the SAFe is implemented with the true intension and the organization abides by the values which FORM an encapsulation around the implementation. The values are the roots which makes sure the tree is getting the right nourishment. Alignment is required to keep pace with fast change, disorderly competitive forces, and GEOGRAPHICALLY distributed teams. Built-in Quality ensures that every increment of the SOLUTION reflects quality standards. The importance of transparency in Agile cannot be overstated. Over the long-run, the lack of transparency can upset the team, the project, and the organization. Without transparency, nothing is going to good. SAFe provides a strong attention on working systems and business outcomes, hence, program execution is the fourth value that SAFe holds.