WHAT MAKES PROPERTIES HOT?

I have watched this strange phenomena for years.:
A home is on the market for months and nothing happens.
Expanded advertising is done and nothing happens.
Open houses are held and nothing happens.
The price is reduced and nothing happens.
Fliers are distributed and nothing happens.
Nothing is done -( status quo) - and nothing happens.
                    and THEN.........
A potential buyer shows interest ... and then another shows interest...
and maybe even  more show interest and something happens!
OFTEN,  even a BIDDING WAR  happens and the property is ...
SOLD!
What happened?
 Why?
 I don't know and I can't explain it.
I just know that it is something strange that hppens.
A house gets HOT and everyone seems to want it.
It seems like every house does  has it's time. I've watched this over and over.
It does happen  - if you're selling, get ready,
 This could happen to your property!
HOT! HOT! HOT!