Everyone and everything was created by the same source.  Therefore, we are all connected to the source by the same source energy.  This source energy is in human beings, animals, trees, plants, etc.  Animals have a very close connection with the source.  They are unlike humans who sometimes allow their minds or thoughts to get in the way of their connection.  I have an adorable little Maltese named Oscar.  We may not behave the same or have the same physical attributes, but we definitely have a spiritual connection.  He is such a loving and faithful little guy.  He is my best friend.