Flow
A state likely to arise more often in the pursuit of a passion is that of Flow or optimal experience, wherein the person is intensely involved in the activity, their skills just match the challenges posed by it, the subjective experience of the passage of time is often altered, and action is perceived as effortless (Csikszentmihalyi, 1990, 1997; Csikszentmihalyi et al, 2005). It has been argued that "flow is a form of eudaimonic well-being. . . . findings suggest that flow may be a critical psychological state that is associated with positive mood, a core component of psychological well-being" (Fullagar and Kelloway, 2009: 610).
Employers cannot create flow states in their employees - nor in fact, can the employees themselves in any direct and reliable fashion - but they can encourage and facilitate employees to engage in those activities for which they are highly intrinsically motivated or have a passion, and which are, hence, more likely to result in flow experiences.