All your emotions
swirled into a fiery ball of life
Scream loud, louder, LOUDER!
or whisper with the fiercest intensity you can muster
It's what you can hear behind really good music, music with some meat to it. Bright, bold in all forms.
Unfortunately, usually lacking. Occasionally, often surprising. Tastes tart and tangy to the tongue. Sometimes confused with madness. The root of many things. Our own personal passions correlate with what we find passionate. Not limited to the sexual act, though most find their passionate voice in sex.
(A prerequisite for my respect).