According to Osho, boredom is a uniquely human by-product of intelligence: the clear-sighted sense that life, as ordinarily lived, yields no lasting meaning or imprint. Animals don't feel it; idiots and the rare enlightened are free of it. Boredom arises when the question of why we are here remains unanswered, as days pass, death nears, and our hands feel empty of real creativity.
Boredom is what smart humans feel when life seems pointless and nothing we do feels truly meaningful.