Where Does Poetry Begin

Where does poetry begin? I know it comes from the heart-- but where is that initial start, that elusive center, the dwelling of the Muse where words into expression first think before depart: Some say it is an unconscious center, simply science no thoughtful Muse; where kinds proliferate their cells no magic no mystical spells by what means thrive the chemicals no one tells (such academic nonsense still really sells) while others say a spiritual center where a Gatekeeper plays till the verse swells and bursts from out this creative part all God’s blessings and all the Devil’s hells-- while I just dutifully write-- my replying to both dark and Light….