I'll try to make this concise, but will probably fail. Many ancient philosophers across numerous cultures recommended moderation or even elimination of the desires and passions as a/the way to deeper understanding or, in the case of Buddhism, enlightenment, whatever that is. I'll assume that the panelists here will be familiar with at least a handful of examples, such as Socrates, Pyrrho, Epicurus, Siddhartha Gautama, Lao Tzu, etc.
I apologize for listing several questions, but as they're so closely related I hope that their number will help triangulate on exactly the point I'm hoping to learn about: Is this advice still relevant for modern humans? Is there any reason to pay heed to this aspect of ancient philosophy, other than as an academic topic? Is there any evidence to support the claim that the control, reduction or elimination of desires and passions leads to greater happiness or deeper subjective understanding of the nature of the human experience?
Many thanks in advance and in hopes of getting an answer.