How did the view of the world of Old Russian people change with the adoption of Christianity?

Christianity was a religion where there was faith in only one god. Thus, the Russian people had to get used to the fact that only one deity is responsible for everything. This god was Jesus Christ or God the Father in his three forms. Also, the adoption of a new religion became the reason for active spiritual and cultural growth in Russia. This is how art began to develop, monasteries and libraries were founded.