What is the main song from Kingdom Hearts 2

Well... theres two as I see as the main ones. 1. Sanctuary - Utada Hikaru. As this is the opening song. 2. Hikari- Kingdom Hearts orcastra version - Utada Hikaru. The end song that plays when Sora an Riku go through the door to light, back to Kairi, King Mickey etc on Destiny Island. Hayden Help. x