Ok so what pieces of classical music send chills down your spine or move you to tears? Even if it's just a brief instant, key change or phrase that you revisit time and again.

I have a couple that get me everytime.
The whole of Elgar's Nimrod and the opening of Handel's Zadok the priest. There are many other pieces I love but not many that reach inside and cause a reaction like these two can.
Oh and Jerusalem. I'll add that quickly. :-)

I know there are folks on here with a lot of experience of this so am looking forward to picking up some new pieces to goosebump to.