What goes on in our LDS Temples is not secret in the least. Because of the sacred nature of some of the instruction and covenants we receive and make inside our beautiful Temples, we do not publically speak about certain things that we have learned. Likewise, we do not even in a casual manor do this, or even in detailed conversation in our homes.
The following video made by the LDS Church, sums up what our Temples are all about....and it says it way better than I could ever.
http://www.youtube.com/watch?v=vGN9Mg-KnMY#t=18
