For the seeker
Service, not achievement, should be the central purpose of life. The key question you should ask both of yourself and others is - how much have you done for others and at what cost.
Service should be selfless, i.e. without expectation of returns. This helps reduce the ego and sets one free from the result.
I do have my doubt about whether service should be for profit OR not for profit. I believe that a for profit service, with the genuine intent of benefiting your customer is the best way to do service. It ensures optimal use of innovation and resources to maximize the customer benefit. It would also be a great philosophy to run a company by. You can read 'Henry Ford - My Life and Work' for understanding how this concept can be put to reality.
Role models of the 'Life for service' philosophy would be Steve Jobs, HH Sri Sri Ravi Shankar, Warren Buffet, Mother Teresa etc.
For the non-seeker
The biggest question I have for the non-seeker is 'What happens after you achieve something great?'. There is no joy in repeating the achievement, so why does the original achievement provide you joy? Examples I have for this concept are:
- Michael Jordan quit basket ball after winning 3 years in a row
- Michael Jackson after he became famous
- Gary Kasparov after winning a little too much
You can counter with examples like Sachin Tendulkar and Roger Federer, who seem to enjoy achievement, but were they really achievers? Federer on clay court, Sachin and his match winning are not the same as facing Michael Jordan on the basket ball court!
In short, 'Does it make sense to live your life to 'achieve' a purpose?' OR 'Does it make sense to live your life to follow a philosophy you believe in?'