Clicked into place

What is the origin of the phrase "when it all clicked into place"?

I haven't found anything yet about the origin of the original version. But I remember the use of the shortened version by feminists. Found this: The use of "click" to mean a feminist awakening. Originated by Jane O'Reilly. "Click!"
Feminism Definition, By Linda Napikoski, Contributing Writer.
womenshistory.about.com/ od/feminism/a/click.htm