Upon leaving Mitzrayim, the Jewish people became wealthy. First, they asked for the valuables of the Egyptians (who, as we know, were happy to give them away as long as the Bnei Yisroel would leave and the plagues would end), and afterwards the wealth of the Egyptians who were drowned at the sea was gathered. The result: “there wasn’t a single member of Yisroel that didn’t have with him 90 Libyan donkeys laden with the silver and gold of Mitzrayim”.1
When we arrive to our parsha, the contributions to the building of the Mishkan, we find that the Torah tells us that Yisroel gave “gold, silver, and copper”. The question the Rebbe asks is: why begin with gold? More copper and silver were given, so why not go in order of quantity of donations? If in order of rarity, then precious stones should come first, but in fact they follow after the precious metals. Why start with gold, then proceed to lesser materials — silver and copper — and then list materials that are even more rare (which not every member of Bnei Yisroel possessed).
The Rebbe proceeds to answer that gold, silver and copper appear first because everyone had these materials to contribute and gold, being the most precious of these, appears first. More than that, we find a lesson that every Jew possesses the “gold-standard” of serving Hashem. A Jew is supposed to serve Hashem for His own sake (lishma), not for personal benefit. Nonetheless, our sages say that even if one is not holding on the level of lishma he should at least serve Hashem lo lishma (“not for His own sake” — for reward, or to avoid punishment) because this will lead him to eventually reach the level of lishma.
…the Rambam explains “therefore when one is teaching children and women and those lacking spiritual refinement (כלל עמי הארץ) one teaches them to serve out of fear, etc., until their knowledge will increase and they will become wiser…until they will grasp [the proper way] and [begin to] serve Hashem from love.” The reason is that from within “lo lishma“, meaning what is inside the (service of Hashem in a way of) “lo lishma” is “lishma“.
The level of serving Hashem “lishma“, the level of gold, is really found by every Jew. Some of us have it revealed, while in others Continue reading

It is brought in the writings of the Arizal that the generation of the future Geuloh is a gilgul (reincarnation) of the generation that came out of Egypt, and according to this, we are redeemed in the merit of the righteous women in our generation, for they themselves are the righteous women in whose merit we came out of Egypt.
The completion and perfection of the avodah (spiritual mission) of the Nosi Hador (on his Yom Hahillula [day of his passing –Yud Shevat]) is the completion and perfection of the avodah of the entire generation (for