The phrase "grand scheme" refers to a larger, more comprehensive plan or vision that encompasses multiple aspects and details. It is often used to describe an overall strategy or goal that takes into account various factors and considerations in order to achieve the desired outcome. The term suggests that the plan is well thought out and covers all bases, with each part working together towards a common end. In essence, it refers to something that is carefully planned and executed on a large scale, taking into consideration multiple elements for success.