"Create a sanctuary" is a phrase that implies creating a safe, peaceful, and comfortable space. Some synonyms for this phrase are "establish a haven," "foster a retreat," "cultivate a refuge," "build a sanctuary," "craft a shelter," and "construct a safe place." These synonyms convey the idea of creating a space that is protected, nurturing, and comfortable. Such a space can be physical or emotional, and it can be created in many different settings, such as a home, a garden, or a meditation room. Whatever the setting, the goal is to create a space that provides a sense of safety, comfort, and peace.