Rabbi Yosef Della Reina (1418 - 1472) lived in Tzfat and wanted to bring the Redemption. One day, he took 5 of his most loyal students whom were very knowledgeable in Kabbalah and did anything he requested. He told them, "I am resolved to use the secrets of the Torah to remove all impurities from this world and bring the Redemption and Moshiach, who will release us from our oppressors."
They all replied that they are ready to do anything their teacher commands them to do. He told them, "If so, you shall do the following. Cleanse yourselves, change your garmets, and for the next 3 days, do not go near any woman, and only you prepare provisions and food, no other person. On the third day, we will go to the fields and not return home until Am Israel are settled each on his farm, in the Holy Land."
They all replied that they are ready to do anything their teacher commands them to do. He told them, "If so, you shall do the following. Cleanse yourselves, change your garmets, and for the next 3 days, do not go near any woman, and only you prepare provisions and food, no other person. On the third day, we will go to the fields and not return home until Am Israel are settled each on his farm, in the Holy Land."