It is the internal fire that makes the improbable possible. Passion is intrinsic. Its locus is inside each one of us. So it does not have to be, in fact cannot be, instilled or motivated into somebody else. It must only be given the freedom and opportunity to emerge.
Passion emerges when one has the freedom and opportunity to pursue one's dream.
The significance of this is that there is no correlation between dreaming and one's environment. A person in the inner city who has never gone mountain climbing can dream about scaling Mt. Everest. The real challenge for the leader in building a high-performance organization is to find ways to transform dreams into realities, not only for himself or herself, but for everyone in the organization. If entrepreneurs do that, then remarkable things really can happen. Passion can take unconventional, but very practical form in entrepreneurial ventures.