Laying flagstone patios in sand, as opposed to mortar or concrete, is known
as "dry construction." Dry construction is easier for do-it-yourselfers than
wet consruction. Not having to worry about finishing your stone placement
before a layer of mortar hardens makes for a much more happy-go-lucky
project. You can make adjustments as you go, on your own time-table.
However, wet construction is more "permanent." Stone laid in sand will have
to be re-adjusted over the years. As settling occurs, you