Fuse block?

In some of the members' lists of equipment added to their Swings, I have noticed "Fuse Block"listed. What is the purpose of fitting this item?

I'm not sure if it is for accessories like heated grips or heated clothing. Some run a wire from the battery up to the front fairing area to use to power other things.

A fuse block is a power distribution device. As Jeff said, if you want to add electrically powered devices, you would use a fuse block if you don't ant a rat's nest of wires emanating from the terminals of your battery. You would run two large gauge wires (-and +)from the battery to the fuse block, and then individual smaller gauge wires from the fuse block to each accessory. The benefit of the fuse block is not only less clutter at the battery, but each individual circuit from the fuse block is fused for protection. Also, some fuse blocks contain relays for powering high current devices like air horns, heated gear, etc. Also some fuse blocks have provisions for constant power with ignition off, and/or switched power.
I like Centech stuff because they are nice and small, and well built.

http://www.centechwire.com/Motorcycles_c15.htm

Another very good but pricier company is fuze blocks:

http://fuzeblocks.com

………and the Lord said "Let there be light." and you could see for miles and miles and miles!!! Thanks gents, I am not conFUSED any more.