Possible Clues:

• Lasting forever, not subject to mortality
• Sounds as if taking the colour out of this might make it last
• What Lazarus was doing with love
• Constant
• Lasting like paint that won't harden without runs
• Never coming to a vital conclusion
• Why does this explain Dracula is lasting forever?
• Sounds as if, by getting the colour out of this, it will never be fading