To me, it means allowing my child to learn about what is interesting to her. Learning becomes FUN and EXCITING and INTERESTING. Learning becomes an adventure. It allows her to pursue her interests and discover her passions.
Zach Aboard posted an entry about Summer School, which read like this, "We have all of our supplies. One kayak, two paddles, and the great green/blue/brown yonder." Aside from sounding like lots of fun, doesn't this make homeschooling sound easy? It can be this easy.
If I look back at last summer, I would say our supplies were a butterfly net, a shovel and 3 buckets. Living is learning and this can not be learned in public schools (at least around here).