The world as we know it would not exist without people who devote most of their energies single-mindedly into a particular endeavor. Songwriters and musicians are consumed by their burning desire to create music. Political and social scientists find bliss in studying structures and norms to come up with solutions. The world doesn't work without passion.
For most of my life, I've thought of myself as a jack of all trades. I dabbled in everything. Genres and interests are rooms that I open and stay in for a while, until my curiosity is sated, and I know enough to talk at length about them.
I was frustrated by my lack of passion for something in particular. I was bound in a ball and chain of envy, watching as my contemporaries pranced around, wrapped in the arms of the ideas and ideologies that make them burn, make them contribute the essence of their souls to the world.
I was an adult who didn't know what she wanted to be when she grew up, only that she wants to explore all areas of thought, particularly in the genres of knowledge that fascinate her -- world history and politics, arts, humanities, natural science, human behavior, and the paranormal (including religion and spirituality).
A series of events led me to the industry called Library and Information Science. I rediscovered the pleasures of being inside a library from the perspective of a manager rather than a user.
Finally, I found a niche where my mind, weirdly wired the way it is, can feel at home.
Finding out that being eager to learn about most things and having the enthusiasm to help people do the same IS the profession for me. It IS the passion I was looking for; only, I didn't see it for what it is.
If people ask me "Why librarian?" I would tell them all of the above if there's time, but for simplicity's sake, I'd just say "because it makes me happy" to keep it simple, but what I really want to express is:
It's the best way of contributing to the documentation and preservation of human memory to possibly change the future of the world.