Found this great quote by Warren Beatty
'You've achieved success in your field when you don't know whether what you're doing is work or play.'
I read an interview about an American copywriter who was asked how he managed to write so fast and with such a fresh approach to his work.
He talked about how he wanted always to have fun writing and he tried to bring a childlike vision to his work. Not childish but the open mind that children have in the questions they ask and the views they come up with.
And he's right. If you're writing for your business and it's a slog for you, then that's what will come across to the reader.
You need to feel the joy of what you're doing and communicate to the reader. That's what get's results.