Place it as the payoff at the end of a scenic sequence, after quiet walking footage and a slow pan across the valley. Follow it with a quiet closing sound for the descent, keeping this as the single high point of the edit.
About this sound
This is a very brief, bright vocal snippet centred on a soaring, hopeful chorus moment. It feels light and suddenly wide open, like stepping into cold mountain air above a city and seeing the whole horizon at once. It comes from Eurythmics' 'There Must Be an Angel (Playing with My Heart)'.