YOU SAID:
My body lies over the ocean
INTO JAPANESE
私の体は海の上にある
BACK INTO ENGLISH
My body is on the sea
INTO JAPANESE
私の体は海にある
BACK INTO ENGLISH
My body is in the sea
INTO JAPANESE
私の体は海にある
BACK INTO ENGLISH
My body is in the sea
That didn't even make that much sense in English.