The Book of Ecclesiastes reads like a medical journal entry listing the modern day afflictions of the American populace. Boredom, insomnia, anxiety, depression, angst, fear, anger and despair are all outlined. It describes the emptiness of even phenomenal success and wealth. It is the testimony of a thinking person who is self-analytical in looking back at their life accomplishments and deciding they were all pretty much futile. It uses a common Bible teaching technique of encouraging us to learn from the mistakes of others.
The more a person studies the Word of God, the more precious and interconnected to modern life it becomes. These are not ancient, outdated words from a past era. They are powerful words that can give us guidance and wisdom in the 21st Century. And the most amazing part of it is that they did the same for people reading them in all the previous centuries as well! The absolute truths of God and His understanding of us (His creatures) has never changed. I feel a sense of astonishment over this, time and time again.