* Sublimation: This is a physical process where a solid changes directly into a gas, skipping the liquid phase. Examples include dry ice (solid carbon dioxide) sublimating into gaseous carbon dioxide, or the slow disappearance of snow or ice in cold weather.
* Sublime (in art and philosophy): This refers to a feeling of awe, grandeur, and even terror that arises from contemplating something vast, powerful, or overwhelming. Examples include a vast mountain range, a powerful storm, or the infinite expanse of the universe. This concept has been explored in art, literature, and philosophy.
* Sublimity: This is a term often used in philosophy and aesthetics to describe the quality of something that inspires awe or sublime feelings.
It's important to note that there's no single, universally accepted definition of "sublime." It's a complex concept that has been interpreted and debated for centuries.
To help me understand what you're looking for, please provide more context or details about where you encountered the term "sublime substance." This will help me give you a more specific and relevant answer.