Petrichor —

“A pleasant, earthy scent produced when rain falls on dry soil. Often described as nostalgic and grounding after rainfall.”

Ephemeral —

“Lasting for a very short time; transient, temporary, often used to describe delicate and passing experiences.”

Liminal —

“Occupying a position at, or on both sides of, a boundary or threshold. The space between what was and what will be.”

Cognition —

“The mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.”