The Anglican Faith is the revelation of Christ one made to the saints, or holy people of God. It is interpreted by the Bishops through the Seven Councils . The difference between High & Low, is that in Elizabethan times it was the policy of the monarchs to force unity, for political reasons on their subjects. Abroad they dealt with it in a more stringent fashion. If you refused you were executed by a choice of several ways. In Germany the Emperors buried their subjects alive, In Spain, they were burnt or sent to the gallies, in France, there were massacres, 30,000 people in one night died through a Roman Catholic pogram against Calvinists! In England, After the early Tudors, the non-comformists were treated well enough, the Romans were fined for not going to Church, which was the law, whilst the Calvinists were only too pleased to join the ancient church. The idea being on the Church side that the bishops and priests would be able to return the youth and malleable to the faith, whilst a long hard winter would see the hard line protestant dissenters off.
The faith of the Church in England was after the Reformation what it was before, Catholic!