The Bonnie Blue Flag, to me, represents the desire for independence. It represents the desire for self determination and self sovereignty. It is a unity, a system that provides its own light and heat. It is the one Star, the one Individual, and, if you will, the one G-d.
While it was first flown over the Republic of West Florida for 90 days in 1810, it was the 1861 flag of the Secession of Mississippi (the Republic of West Florida included the southern counties of Alabama, Mississippi, and Louisiana). The flag was immortalized by the song of the same name, written by an Ulster immigrant, and because of the song, the Bonnie Blue Flag became the first if unofficial flag of the Secessionist movement of the Southern States.
Nowadays, the flag has the opportunity to represent the reborn movement of the supporters of the Tenth Amendment of the Constitution, and the Tea Party movement. I have seen it in pictures of various Tea Party rallies, so some people "get it". The Bonnie Blue Flag was (fortunately) never associated by the victors of the War Between the States with Slavery as they did with the Confederate Battle Flag. In addition, it has never been co-opted by the forces of racism and white supremacy that have tainted (in the minds of the miseducated general public) the glorious Confederate Battle Flag. Therefore, it is the historical Flag of Secession with the best chance to be adopted by converts to decentralism, States rights, smaller Federal government, etc.,.
The single star represents each single State of the union. It represents each single individual in each State. Buy it and fly it.