then have your poem show them that the smallest being , he who has made their hearts his home , he who takes up no space , yet fills the universe , tell them that this little self , whether the size of a thumb or the size of a mountain , he who whether they know it or not is always enshrined in every heart , is indeed the ruler of all time , past and future , though he lives in the now , and can never live elsewhere for now is all there is .