Try: ephemeral serendipity ubiquitous
Lasting for a very short time; transitory.
"The ephemeral beauty of cherry blossoms reminds us to cherish every moment."
Something that is very short-lived or temporary.
"He viewed his political career as just one of life's many ephemera."
"The study focused on the ephemeral nature of social media trends and their impact on youth psychology."
"She painted the ephemeral glow of dawn, capturing the exact moment night surrendered to day."
"Success is often ephemeral if you don't put in the continuous effort to maintain it."