Ooh yes a fascinating subject for me too Dame Ragnelle!

I hope you don't find me obtuse, but for me there is nothing 'religious' or quasi religious about creativity being larger than the self.... It is more spiritual....and for me there is a huge difference. The former is about external belief with a set of doctrines, the latter is the inner experience of Being something more than the small self.....exactly the definition of creativity!
But rather than it being a duality of inner or outer....that creativity is about tapping into or channeling something else something bigger / external, for me it's more of a dissolving back into Oneness, into source, so there is no 'other', or boundary or separation....back into the field of pure potential, into the infinite... where everything arises..including the powerful pure flow of creativity....and it's about getting our self, our ego, will, efforting, trying out of the way...and allowing, if you like, surrendering..not to something bigger and external, but the infinite power that we truly all are. Which is why I recommend meditation for creativity ....it's just returning back to a state of being...and letting things flow!

I have noticed for myself of late, less meditation due to more busyness in life, and far less creativity flows. The moment I meditate...it's like the slate is wiped clean, and the words just arise naturally 'as if from nowhere' and begin to write themselves effortlessly!