gateway to success; stepping stone to fame
Metaphorical expression derived from the legend of a carp becoming a dragon after climbing a waterfall. Used for a crucial opportunity, exam, or institution that can launch a career.
This competition is a gateway to success for young writers.
The bar exam is said to be the gateway to the legal profession.
The Akutagawa Prize is said to be a gateway to success for new writers.
This contest has become a launching pad for young designers.