THE HALACHA THAT MOSHIACH CAN COME EVERY DAY
“If a man says let me be a Nazirite on the day on which the son of Dovid (Moshiach) comes – if he said it in the weekdays he may never drink wine, and if he said it on Shabbos or Yom tov, that particular Shabbos or that Yom tov he is permitted, from then and further he is forever forbidden.” (Rambam Nezirus chapter 4 halacha 11)
This is a halacha that Moshiach can come every day. Nezirus, (when a person takes a Nazirite vow) is defined in various ways: It is the abstinence from from wordly temptations and self-indulgence, to abstain from the pleasures of life, to diminsh ones desires. It is also when the person brings upon oneself to be sanctified and sacred. Both of these will be completed and perfected when Moshiach comes, when the Jewish people will be “free for involvement with the Torah and its wisdom… and in that time there will be neither famine nor war, neither envy nor strife, because good will emanate in abundance and all delightful things will be accessible as the dust, and the sole preoccupation of the entire world will be the pursuit of the knowledge of Hashem” (Rambam end of hil. Melachim).
This is the reason this halacha is learned particularly from the laws of a Nazir: because the sanctity of Nezirus in its complete and perfect form, will be when Moshiach comes, as the passuk says (Amos 2:11): I will take from your children for prophets… and for Nazirites. (Likkutei Sichos vol.38 p. 32
When the topic of Moshiach is discussed, there are some that think these discussions about Moshiach are abstract and theoretical, in the category of what the gemara calls “hilchasa le’Meshicha” (laws relevant only in the days of Moshiach). However one must realize that this is not the case, as clearly evident even in nigleh, the revealed part of Torah.
There is an opinion that even nowadays a kohen (priest) is forbidden to drink a revi’is of wine, [a revi’is is approx. 3,5 ounces] because the Beis HaMikdash will be rebuilt very speedily, and intoxication disqualifies a kohen from serving in the Beis HaMikdash, There are two ways to wear off the intoxication of a revi’is wine: (1) through sleep; or (2) the passage of time it would take to walk a mil. The time needed to walk a mil is 18 minutes, or according to other opinions at most 24 minutes.
It follows then from a nigleh perspective, that Moshiach may come with a completed Beis HaMikdash in a very short time, at most 23 minutes and 59 seconds, thus necessitating immediate readiness for the service in the Beis HaMikdash! (Likkutei Sichos vol.2 p. 618)