clerics, monks and laymen, the confiscation of religious implements, and closure of churches. 130 These include various practices regarding the veneration of the saints, especially veneration of the Virgin Mary. The liturgical assembly derives its unity from the "communion of the Holy Spirit" who gathers the children of God into the one Body of Christ. In the 1960s, the Second Vatican Council led to reforms of the church's liturgy and practices, described as "opening the windows" by defenders, but criticised by traditionalist Catholics. 95 It holds that the Father, as the "principle without principle is the first origin of the Spirit, but also that he, as Father of the only Son, is with the Son the single principle from which the Spirit proceeds. To avoid placing himself in visible subjection to the Italian authorities remained a " prisoner in the Vatican ". Annuario Pontificio (Pontifical Yearbook). 281 note 14 Others say that the institution of the papacy is not dependent on the idea that Peter was Bishop of Rome or even on his ever having been in Rome. 310 311 In 1095, Byzantine emperor Alexius I appealed to Pope Urban II for help against renewed Muslim invasions in the ByzantineSeljuk Wars, 312 which caused Urban to launch the First Crusade aimed at aiding the Byzantine Empire and. "World's most-visited religious destinations". Ambrose, De viduis 4,23:PL 16,255A.) Yardley, Jim; Goodstein, Laurie. Pollard, John Francis (2005). The 1926 Calles Law separating church and state in Mexico led to the Cristero War 346 in which more than 3,000 priests were exiled or assassinated, 347 churches desecrated, services mocked, nuns raped, and captured priests shot. Retrieved " Compendium of the CCC, 302303". (The Philippines does, however, allow divorce for Muslims.) Contraception Main article: Christian views on contraception Catholic Church See also: Catholic Church and HIV/aids and Religious response to assisted reproductive technology Catholicism The church teaches that sexual intercourse should. "The Pope's Ecological Vow". Hodder and Stoughton, 1995.