Detours are, I think, essential to life. The alternative is nose to the grindstone, eyes on the target and let nothing divert you from your fell purpose. But that's such a limiting view of life. Life, that is, in its fullness, and not just life boiled down to work. Certainly from experience it's the detours and diversions that often prove most illuminating and satisfying.
I remember, for example, hurtling through the Romanian countryside in a Trabant, sometime in the early 1990s. We were travelling to Bucharest airport. Part way, my host saw me looking at the mangled wreckage in a nearby field - "it's what's left of a salt mine" he said, "would you like to visit"? The next thing I remember is entering a decrepit elevator - which reminded me of the old lift shaft at London's Russell Square tube! Doors closed, lights extinguished, and we dropped a hundred feet. Terrifying. But when we exited it was in to a vast underground square-cut tomb of swirling paisley patterns. Everything - floor, walls, ceiling were salt (I tasted to check - yuk!) Our guide reckoned you could fit St Paul's Cathedral down there!
But there was yet more strangeness - rounding a corner we came across floodlit ranks of beds....during the Soviet era patients with bronchial complaints would stay to recuperate.
So all in all I'm with the Roman poet, Horace, "carpe diem" - seize the day, or as sometimes more elegantly put "pluck the day when it is ripe"! [http://www.phrases.org.uk/meanings/carpe-diem.html]
Any reader detours welcomed! See you tomorrow