The song "Heads" by Hawkwind is a commentary on the limits and excesses of human ambition and the allure of immortality. The lyrics suggest that despite our technological advances and scientific achievements, we have yet to fully understand the infinite possibilities and potential of the human spirit. The line "our limits of the infinite have never been defined" underscores the idea that we have barely scratched the surface of what we can achieve or become. However, this pursuit of immortality and eternal life is also seen as misguided and ultimately futile. The song critiques the idea that we can achieve immortality through science, suggesting that the notion of preserving life in a jar is a cheap and hollow substitute for true immortality. The repeated refrain "necromancy lives forever preserved within a jar" highlights the absurdity of this idea and the sense of stagnation it represents. The song also touches on the theme of superficiality and the disconnection between people in the modern world. The lines "link yourself to others, talk yourself to sleep" suggest a kind of empty voyeurism and a lack of true connection between people. The song suggests that all our technological progress and scientific advancements have not brought us any closer to true understanding or empathy, but have instead left us disconnected and adrift.
