It is the description of a Practical Idealist and adarshvadi person..through the example of sona and ginni ka sona.
Ginni ka sona means the mixture of copper in the Gold content.Practical idealist can be identified by such an example.
And Adarshavadi are as compared with the Pure Gold.
Persons like M.k Gandhi are examples of Adarshavadi. They carry the persons lagging behind along with them.
Whereas Practical Idealist take the decisions as per the situation.And thus are able to achieve success in life.
It is very easy.