Truth would seem to be an obvious part of flow, but in reality it is not in the current usage. You see, the truth is dependent on friends, family, and society for its definition. A million years ago a friend of mine was working on the Michael Dukakis campaign for president. He was exasperated that people couldn’t see the truth that George Bush (the first one) would make a bad president. Yet Bush handily won the election in 1988, so the truth for most voters was the opposite. Truth is relative to the person telling it. That’s why both my friend and the Bush supporters were both “telling the truth” even though they conflicted.
There are endless examples of such truth throughout history. Throughout most of American history the truth was that blacks were inferior to whites, a truth backed up by the law. During the height of the Iraq War a televangelist told his congregation that the truth was that God loved war. Growing up my parents told me, directly and indirectly, that the truth was I was a failure and always would be. And so on.
This isn’t to say there aren’t absolute truths, but in flow there is no need for truth in the traditional sense. After all, everything you do in flow is “the truth” for you and for the universe. I know such a distinction may be hard to understand, but once you experience your own flow you will know the difference between truth in flow and truth as determined by friends, family, and society.