Dust

There is a profound tradition in the Islamic faith for when a person is laid to rest.

"It is recommended that the those near the grave put three handfuls of dust on it, saying with the first: 'From it did We create you' with the second: 'To it shall We return you' and with the third: 'And from it shall We bring you forth another time' [20:55] Quran
"Then dust should be very gradually and gently poured over him until the grave is filled and even..."

There is a spiritual bond with this earth, regardless of which faith you believe in.