The shift from a vision of future growth and empowerment to one of near term contraction has had its impact on the spirit of volunteerism that Ms Yon illustrates, she thinks.

ECONOMIST: Day five: The many greenings of Ascension

There is a shift taking place in the coalition's vision of the future of Afghanistan.

BBC: Afghanistan's 'green on blue' collapse of trust

The fading of the Islamists' vision also reflects a profound ideological shift among Egypt's militants.

ECONOMIST: A reassuring message from Egypt's Muslim militants

You must be persistent in fulfilling your vision, but also be ready to shift course based on the changing demands of the job market or economic landscape.

CNN: Permanent beta: Why your career is a work in progress