Can you give me directions to Zen please?

Sometimes, whether it's swimming, biking or running, you get into 'The Zone'.  The Zone is a place where time stands still, you cover huge distances without realising it and your body is working at it's optimum capacity.  And it doesn't happen very often at all.

However, this morning I was in The Zone biking to work and the 2 hours flew by at an average speed of almost 19mph.  Not quick by some standards, but given the 10 mile run I did last night and my overall level of knackeredness, it was much quicker than I would have expected.  I'll be surprised to feel like that on the way home.

The experts tell you to get in The Zone in an Ironman race - to switch off from your surroundings and just do it, thereby relieving the boredom by not being bored.  Another theory is to disassociate your thoughts from the specific activity i.e. don't think about running when you're running.
Difficult I reckon when all your physical efforts are geared towards that one thing.