guidance / piece of guidance

[Tan Elaine]

Our Chief Priest gave us an important guidance as follows...

Our Chief Priest gave us an important piece of guidance as follows...

Should it be 'guidance' or 'piece of guidance'?

Thanks.

 

[5jj]

I'd say:

He gave us [STRIKE]an[/STRIKE] important guidance/advice.
He gave us an important piece of advice.

'Piece of guidance' does not work for me.