How can I put myself into the mindset to write poetry quite quickly?

I can only write poetry about my experiences because I am a very ytical and logical person, when i go into whimsical i just spite my creations. Apparently there is a mindset in which subconscious creative thoughts are brought to the fore. As an ignment I have to write a piece of poetry today and it is to be inspired by the romantic poetry movement. If any poets out there could give me any little tips about putting yourself in 'poetry mode' or any tips about writing poetry in general, that would be greatly appreciated. Thanks in advance, everyone :)