A ray of light or energy that is active or energizing.

Referring to a ray that is metaphorically 'active' in producing effects or outcomes in a context.

प्रभाव डालने वाली किरण

English Usage: The active ray of hope guided her through difficult times.

Hindi Usage: आशा की सक्रिय किरण ने उसे मुश्किल समय में मार्गदर्शन किया।