This article looks into relativity of our daily life and thoughts by adopting Einstein's theory of Relativity and cognitive psychology. By pointing out relativity, this article further explores ways from relativity to compatibility, precisely ways toward an ideal state of habitual domains, in light of three concepts of habitual domains theory, namely ”the seven bright faith”, ”the eight basic methods for expansion” as well as ”the nine principles for deep knowledge”. First, I will explain what is an Ideal Habitual Domains, and then point out myths of cognition from the perspective of the theory of Relativity and cognitive theory. I will further elaborate relativity in our thoughts in different cases. To conclude my point, I will propose ways from relativity toward compatibility by reviewing habitual domains theory. As Professor Po Lung YU mentioned, ‟Being aware leads to wisdom,” and ‟general features of an Ideal Habitual Domains are: no bias and no judgment,” we can go beyond limitation of habitual domains and further revitalize them by practicing methods offered in ‟the seven bright faith”, ‟the eight basic methods for expansion” as well as ‟the nine principles for deep knowledge”, the three major concepts of the habitual domains theory. These methods include the application of void principle, minds arising without attachment (the letting go of habitual domains), the concept of all helping and contributing, the contrasting and complementing principle, the change of minds (the change of the relevant parameters and the environment), alternating principles, active learning, projection from a higher position. By doing so, we can move from relativity to compatibility and establish an Ideal Habitual Domains.