What are the symbols and theme of "The Rocking-Horse Winner"?explain by giving example

In a sense, many readers may feel y Paul’s periodic rides
on the rocking horse are regarded as symbolic acts. The single-minded frenzy with which
Paul rides his rocking horse parallels the intensity of the money-lust that dominates
Paul’s family. There is no joy in his riding, as there is no joy in his house.The theme
of “The Rocking-Horse Winner may be stated as "The love of money is destructive of all
other love, and even of life itself." The symbolism of the whispers and the money the
boy gives his money can extract rich rewards on the part of the reader. There are an
abundance of symbols.