On this day every year, Bodhi Day, the Japanese celebrate the enlightenment of Buddha, the moment at which Gautama Siddhartha, while sitting under a bodhi tree, found the solution to the problems he was confronting and achieved Nirvana.
In Japan the festival is known as "rohatsu", or "eighth day of the twelfth month". Zen monasteries often host a weeklong ritual culminating today, and believers are supposed to be meditate for the whole of tonight.
We'll be pursuing our own form of Japanese enlightenment today, with the meditative harmony of whisky and water, lovingly and calmly stirred, that the folk of Japan know as "Mizuwari", or "mixed with water", and often drink with dinner. Do give it a go.
Fancy being a performance artist for the day? Today is "Pretend to Be a Time Traveller Day", a stroke of pure genius that does exactly what it says on the tin.
Should you wish to participate, you have three main options. Act as a visitor from a utopian future, channel the spirit of a visitor from the past, or go with any dystopian future you care to imagine, be that the world of Twelve Monkeys, The Terminator or Mad Max.
A few starting points? As a visitor from a dystopian future, you might want to opt for a wardrobe of rags and fake prison tattoos, and ask "What year is this?" As a Victorian, you might want to inspect a stranger's smartphone with an air of suspicion and fear, and perhaps call down God's vengeance on them.
Even if you're not playing the game, you really should try a Benton's Old Fashioned - one of the world's oldest cocktails enhanced by a futuristic bacon wash, it's virtually time travel in itself.