Has anyone ever wondered who the heck Aunt Yolanda is? 

Nothing in writing is random -- things said by characters are there for a reason.  And Grace told of her Aunt Yolanda being a psychic -- so WHY did she mention this?  What is the significance, I have to wonder?  

Aunt Yolanda must be someone on the show, it's been planted in our heads.

If a character we know turns out to really be Yolanda, we'll go "Oh, yeah -- Grace said that back in Season One..."  and we'll be surprised because we've not focused on that clue -- cause the best clues are always the ones that are subtle and easily taken for granted so that we overlook them -- UNLIKE THE PIGEONS

So, who could Grace's Aunt Yolanda be?  Kristina Frye perhaps?  

But Yolanda is a color name, means purple or violet