正果 is a Buddhist term referring to the final result of spiritual practice — the 'right fruit' one attains through good karma. In modern Chinese, it appears almost exclusively in the four-character idiom 修成正果, which has broadened from its religious origin to mean 'to achieve success after sustained effort' (like completing a tough project or finally getting a desired result). You can use it as a stand-alone noun in Buddhist contexts, but the figurative usage is far more common in daily speech.