Organic is a term that is sometimes abused and used for dubious purposes. You can view it as a source of reverence and semi-worship. You can also view it as being a good marketing edge in a commercialised world.
Personally, I see several loose strands running through the term organic. There is sustainability. This involves sustainable systems of growing food so that our land & environment are not degraded to a point where food production is degraded. Our land, water, air etc must at least not deteriorate due to our system of growing food. There is also social sustainability. Growers must receive fair payment and have some options to control their production. Fair trade etc. Food should be viewed as much for its use value as for its exchange value. I'd also tie in things such as eating seasonally and locally.
That is a fairly wide interpretation and covers environmental - social and economic systems.
rob