anyone familiar with the branchings of the lung bronchi and their lobar divisions( i.e. the way wind pipe branches into lung) will see.... A similarity beyound doubt.... in the branchings of this tree... Holding the mesentry of intesine against light one can appreciate that the branchings of the blood vessel follows a similar pattern, like the branching of this tree. A sign'...A direction... if the eyes dont lie.. common artistry ... and much more to decipher...