Creations or electrical pulses?

Are ideas the product of years of experience, stimuli and personality traits pushed together? OR are ideas the result of electrical pulses in the brain? Do the rhythms of the planet control our very core? Am I prone to be more creative when "MADE" to be or do I have a better chance at discovering my epiphany by chance? If we are controlled by the tide, the moon, the stars, then can we 'schedule' creativity? Or should a person simply 'create' when the mood strikes?