Tridentinus , it has been said that we are living in an era of change .  Another take is  we are likely living in a change of era .
John XXIII assembled the council " to make the sojourn here on earth less sorrowful " ,
For at least 200 years Catholicism was stalled and mired in unhealthy sadness  and triumphal ism  .  
No wonder some resented the open windows and have offered the ploy of misinterpretation. 
Human beings can develop and change once they get over their fear .  
Saul of Tarsus is an excellent model of that marvel .