I read Dune when I was twelve and I continue to revisit it as its lessons remain as potent today as yesterday.
In my mind it remains the greatest single science-fiction novel ever written, not simply due to the quality, depth and cadence of the writing, but also because of the universe Frank Herbert wrought, so real that it is more real than the world we live in. If there ever was a contender for a SF novel worthy of the Nobel Award then surely this must rank high.
There is a certain timelessness to this Science Fiction eco-religio-political classic that defies interpretation and continues to capitivate and tantalise. There is a brooding quality that erodes limits and barriers. It emphasises certain realities, but continues to hint at even greater depths and mysteries.
Dune was turned down by twenty or so publishers before it was finally accepted and even then, grudgingly...there perhaps lies hope for writers who achieve only rejection instead of recognition. Publishers are businessmen: don't expect them to fund art for art's sake.
Finally, in today's world of eco-nightmare and addiction to petroleum, the nature, shape and influence of "spice melange" has a message for us today. There lies the secret of a timeless classic - it answers questions of the day in perpetuity.