For Young, a calling is when professional skills, career ambitions, personal interests and values fuse together.
Job satisfaction is exceptionally high, regardless of the demands on time and energy. "You don't mind the hard work and sacrifice because you are totally committed to what you are doing. On the flipside if your job feels like hard work, which you resent then you definitely haven't found your calling. It's more about following your gut and your heart, rather than your head."
As a journalist he used his abilities to think quickly.
"But it didn't give me a deep sense of service like the Starship Foundation role, which was all about supporting and boosting the health and wellbeing of our country's children. It felt like an incredibly important need."
To discover what is right for them people need to be active and seize the opportunities when they occur, which can happen at any time.
"And it doesn't always mean an opportunity presenting itself to you. Sometimes you have to go and create the opportunity or go door knocking to make it happen."
An unconventional, entrepreneurial approach works well, he thinks. Entrepreneurs "back themselves, chase their dreams and create their destinies. And if it all goes pear shaped, they start again."
A calling is for anyone and everyone, he says, whether it's paid or voluntary work.
"If you are a well-paid stockbroker, totally in love with what you do and it lines up with your values and beliefs, then I'd say you've found your calling. A calling is a very personal thing, and it certainly isn't reserved for saints or Mother Teresa."
Business psychologist Jean de Bruyne has worked with hundreds of clients, but she says few make the - often radical - change required to discover or follow what they may be called to do.
"People want the safety net because we are brought up to believe the safety net is important rather than throwing caution to the wind," De Bruyne says.
And people may also be caught up in meeting more material aspirations.
Her own work is fulfilling, although when she chose psychology she was not fully aware what attracted her. She says psychology provides people with ways to discover more about themselves and their direction rather than "meandering through life".
Examples are all around in New Zealand, she says. The Mucking In programme on television "shows people who are called to be the kind of person they are in the community they live in. In turn they are expressing who they are - just everyday New Zealanders who aren't necessarily rich and famous."