About "Spell Object"(if i should call it like that)

[demonguy]

As the picture shows.. When Casting "Ring Of Frost", there will be a model at where you cast it... Once it's casted successfully, a dynamic-object is created... But when it's casting , there is a "Ring Of Frost" Model in the picture, but before successfully casted, no object is created... So what it is? And how to get the XYZ before it's successfully casted?