I have no idea what Pi Phi heaven is.
And it's not in any of the manuals that I looked through when I was recording secretary.
We do a pretty basic pref. ceremony which invoves a little reading (I think it's in a manual somewhere) and two seniors give speeches. Then there's a candle lighting ceremony - we stand in a big circle around our dining room with an arrow shaped table in the middle and a tea light on it for each PNM in the group. Each PNM has an active with her, and they each have a candle. As the flame gets passed around the circle, each PNM/active pair steps forward and lights a candle on the table together.
I like our pref ceremony because it was very inclusive. When I was a PNM, it made me feel as if I was a part of the house already, which is I think what PNMs are looking for.