Reflects the importance or relevance of something according to a person's beliefs or values. In my scheme of things, family always comes first.
Pro Tip 2/3
Subjectivity
Highlights that it's a personal rather than universal concept, varying from one individual to another. In her scheme of things, success is synonymous with happiness.
Pro Tip 3/3
Prioritization
Indicates how someone ranks the importance of different aspects in life or work. In the grand scheme of things, small setbacks aren't significant.