the thing of it
Noun
Meaning
the thing of it
(idiomatic, colloquial) The important point to consider.
Examples
The thing of it is though that's the only way people know you, they see you in that roll and they see you in person and they only know the perception of what you are.
I have no doubt that there are great people about though... the thing of it is, nothing to this day moves me like classical music (Debussy, Vaughn Williams).