Please don't forget the cross, itself.
Once a symbol of pagan torture and execution, a device to strike fear into the masses, of a miserable death.
Yet, somehow, that cross has become a Christian symbol of life everlasting.
Funny how those pagan thingies have different meaning now, in a Christian context.
It was God who orchestrated that Christ would be "lifted up" on that "pole".
Numbers 21:9 And Moses made a serpent of brass, and put it upon a pole, and it came to pass, that if a serpent had bitten any man, when he beheld the serpent of brass, he lived.
John 3:14 And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up:
But you may also want to check out what happened when the Israelites began using that as an idol.
2 Kings 18:4 He removed the high places, and brake the images, and cut down the groves, and brake in pieces the brasen serpent that Moses had made: for unto those days the children of Israel did burn incense to it: and he called it Nehushtan.
Do you burn incense in front of that cross?