The song Natural High by HammerFall is about the theme of vampirism and it tells the story of a vampire who is on a quest for revenge. The song starts with the vampire describing a dream where he found a place where nothing is as it seems and he is destined to walk the earth alone, hunting and seeking revenge. The chorus of the song is an invitation for all to surrender their souls and enter the vampire's dream, where they will find their natural high. The vampire is portrayed as a hunter, driven by the taste of blood and the need for revenge, and as the song progresses, he becomes more powerful, with his urges to kill growing stronger. The vampire's battle rages inside, with no escape from his eternal bride, whom he will come alive for every time the darkness surrounds. Through the chorus of the song, the vampire seems to be inviting his prey, or those interested in vampirism, to surrender to him, and become a part of his game, with the promise of a rebirth to a higher plane. The song ends by stating that those who surrender their souls to the vampire will be born again, forever free, and forever a part of the darkness. The song is a celebration of the power of the vampire myth and the allure of surrending to the darkness.