Everybody has a wish or the other that they want to happen in their lifetime. Some wishes come through while some seem impossible so they are born and die in the mind of the wishes
Some of the greatest ideas and wishes died in the mind of the wishers because there were no means of actualizing them because the mind always conceive great things that always seem very hard or even impossible to materialize
This season of Christmas, Sancta Claus is believed to grant people's wishes even those that seem hard amd impossible
Sancta Claus also known as Father Christmas is said to bring gifts of toys, candies and other materials to well behaved children on Christmas eve but brings coal or nothing to naughty children.
St Nicholas, continued doing that to encourage good behaviour and motivate naughty children to change for good. Over time, because the children never saw him when he dropped the gifts, they began to think Sancta Claus is invisible and could do anything, he could grant just any wish
So, if I'm Sancta and asked to grant a wish by one person, I would grant the wish of no other person but that of our birthday celebrant because his wish is not a selfish one
He wished "that we may be one". He wants everybody to love one another and see each other as brother's and sisters.
Come to think of this, if we all love one another, there will be no hate, no violence. If we all love one another, there'll be no need for wars and disputes, everybody will see their neighbour as themselves.
This wish will benefit everybody in the world. The world will definitely be a much better place if true love exists and in the world. This is the wish I will grant as Sancta