Fleeting Trace is a term used to describe a brief, ephemeral moment or occurrence. It can be used to refer to a physical trace, such as a footprint, or an emotional trace, such as a feeling of joy. The term is often associated with the word 'WISP, ' which is defined as a thin, delicate strand of something, like smoke or fog. WISP is also used to describe a brief, fleeting moment or occurrence. Together, the two terms create a vivid image of something that is both delicate and fleeting.