It is more generally considered to be half of the maxim "As Above, So Below" that is quoted by every occultist and originates in the second line of the ancient alchemical tract Tabula Smaragdina.
The front cover designed by Peter Willis is a reference to the Emerald Tablet, or the maxim "As Above, So Below" and portrays the male solar deity on the bottom while the small crescent on top represents the female lunar deity.
"Killer Boogie" and "Rúdolf" are featured again in Rokk í Reykjavík (Rock in Reykjavík), a concert compilation released in 1982 with the presence of other renowned Icelandic bands.