violate any halakhic law that stands in the way of saving that person (excluding murder, idolatry, and forbidden sexual acts). The concept of life being in danger is interpreted broadly: for example, it is mandated that one violate Shabbat to bring a woman in active labor to a hospital. Lesser rabbinic restrictions are often violated under much less urgent circumstances (a patient who is ill but not critically so). Various other legal principles closely delineate which activities constitute desecration of Shabbat. Examples of these include the principle of shinui ("change" or "deviation"): A violation is not regarded as severe if the prohibited act was performed in a way that would be considered abnormal on a weekday. Examples include writing with one's nondominant hand, according to many rabbinic authorities. This legal principle operates bedi'avad (ex post facto) and does not cause a forbidden activity to be permitted barring extenuating circumstances. Reform and Reconstructionist views Generally, adherents of Reform and Reconstructionist Judaism believe that the individual Jew determines whether to follow Shabbat prohibitions or not. For example, some Jews might find activities, such as writing or cooking for leisure, to be enjoyable enhancements to Shabbat and its holiness, and therefore may encourage such practices. Many Reform Jews believe that what constitutes "work" is different for each person, and that only what the person considers "work" is forbidden. The radical Reform rabbi Samuel Holdheim advocated moving Sabbath to Sunday for many no longer observed it, a step taken by dozens of congregations in the United States in late 19th century. More rabbinically traditional Reform and Reconstructionist Jews believe that these halakhoth in general may be valid, but that it is up to each individual to decide how and when to apply them. A small fraction of Jews in the Progressive Jewish community accept these laws in much the same way as Orthodox Jews. Encouraged activities The Talmud, especially in tractate Shabbat, defines rituals and activities to both "remember" and "keep" the Sabbath and to sanctify it at home and in the synagogue. In addition to refraining from creative work, the sanctification of the day through blessings over wine, the preparation of special Sabbath meals, and engaging in prayer and Torah study were required as an active part of Shabbat observance to promote intellectual activity and spiritual regeneration on the day of rest from physical creation. The Talmud states that the best food should