[ns] god set-dist.. explanation

[Kostas Robotis]

 > $ns_ at 899.642 "$god_ set-dist 23 46 2"
>
> are used to load the god object with the knowledge that the shortest path
> between node 23 and node 46 changed to 2 hops at time 899.642 .

Can someone please explain me how exactly is this used by ns?

and also: is this statement always valid? What if it is discordant with the
locations of the two nodes at that time? It is ignored then?
And most important how exactly is this related to an Ad-Hoc routing
algorithm. For example, AODV uses this information to create its routing
tables? (I hope not)