Remembering Oscar-Claude Monet, born on the 14th November 1840
“When you go out to paint, try to forget what objects you have before you, a tree, a house, a field, or whatever. Merely think, here is a little square of blue, here an oblong of pink, here a streak of yellow.”
I believe these apply to writing: let go of the topic and immerse yourself in the power of the words your imagination creates.