Achieving meaningful life work is a process that involves aligning one's work with one's true essence or core self. It is an ongoing process that involves self-reflection to discover the deep passions within and then exploration of how to bring those passions or interests to bear in meaningful ways at work. In response to the need to address the evolving concept of meaningful work, a new construct known as career happiness has emerged. Career happiness results when individuals find or develop careers that allow them to express their core identities and values, that tap into their true essence. Career development theories such as constructivism, adaptability, planned happenstance, and connecting spirit and work support the development of careers that are purposeful and meaningful. (Contains 16 references.) (YLB)