Shabbat commemorates two main concepts: the creation of the world and the Exodus from Egypt. It recalls the seventh day of creation when God rested, emphasizing the importance of rest and spiritual reflection. Additionally, it celebrates the liberation of the Israelites from slavery, serving as a reminder of freedom and the covenant between God and the Jewish people.
1) God completed creation. 2) God took the Israelites out of Egyptian slavery (Exodus ch.20, Deuteronomy ch.5).
On Shabbat, several blessings are recited to sanctify the day. The most notable are the Kiddush, which is said over wine to bless the day and commemorate creation, and the Hamotzi, which is recited over bread to acknowledge God's provision. Additionally, blessings are said during the lighting of Shabbat candles, welcoming the peace and rest of the day. These blessings help to create a sacred atmosphere and mark the transition from the weekday to Shabbat.
There is no Biblical reason, but it is a custom, as a symbol to 'remember' the significance of Shabbat, and to 'keep' the laws of Shabbat, which are two things the Torah tells us to do on the seventh day of each week.
Shabbat is very important because it gives you a chance to rest. In Rabbinical Times, the sabbath (Shabbat) was important for everybody, because everybody worked every other day. Shabbat is also a time for connection to God, and to find spiritual meaning, as well as a time for family and friend to get together. Me, being Jewish, and many Jews find that Shabbat is a great time to go over the weeks' events and to remember who you were kind to, and who you weren't.
The Shabbat is a subcategory of sacred, since God sanctified it (Genesis 2) as one of the the sacred things.
G-d did not create anything new on Shabbat; the 7th day of rest. All of creation was completed in the first 6 days of creation. Since then G-d has been maintaining the world, but not creating anything new. To commemorate this, Judaism defines 39 categories of creative work which are forbidden on Shabbat. E.g.: baking, planting and lighting fires. See http://www.answers.com/topic/39-categories-of-activity-prohibited-on-shabbat for an introduction to these 39 categories.
Because of the two different phrases (Zachor and Shamor) in which the Torah tells us to observe the Sabbath (see Exodus ch.20 and Deuteronomy ch.5). We light two candles to remember these commandments throughout the sabbath day.
Anything but a list of 39 prohibited acts. In the Talmud, tractate Shabbat, 12:1 it summarizes the spirit of the law as "one who does work on Shabbat and the work is enduring has violated shabbat." So, recreation, eating, worship, argument, all those are OK, but don't make things, plant things, harvest things, carry things (outside of your private domain), light fires, or put out fires (except to save a life). Saving someone's life on Shabbat is, of course, permitted even if it takes work.
Traditionally, the Shabbat candles are lit by women. If the woman is unmarried, she will usually light one candle, if she's married two and often one for each child.
Record and Commemorate
MY AWNSER IS:=Computers, Electrical Items And Public Transport.=
Orthodox Jews only use electricity in a passive manner during Shabbat. This means that they can leave electrical appliances on over Shabbat or use timers that automatically turn such things as lamps on and off.