The greatest Kabbalist of our time was Rav Yehuda Ashlag (1884-1954). Thanks to his work, The Book of Zohar began to become known. Rav Ashlag is known as Baal HaSulam [Hebrew: Owner of the Ladder] for his Sulam [Ladder] commentary on The Book of Zohar. In his latter years, Baal HaSulam wrote what is known as “Writings of the Last Generation,” which begin with the following words:
“There is an allegory about friends who were lost in the desert, hungry and thirsty. One of them had found a settlement filled abundantly with every delight. He remembered his poor brothers, but he had already drawn far off from them and did not know their place. What did he do? He began to shout out loud and blow the horn; perhaps his poor hungry friends would hear his voice, approach and come to that abundant settlement filled with every delight.
“So is the matter before us: we have been lost in the terrible desert along with all mankind, and now we have found a great, abundant treasure, namely the books of Kabbalah in the treasure. ...
... “Now, distinguished readers, this book lies here before you in a closet. It states explicitly all the wisdom of statesmanship and the behavior of private and public life that will exist at the end of days, meaning the books of Kabbalah...
“Open these books and you will find all the good comportment that will appear and the end of days, and you will find within them the good lesson by which to arrange mundane matters today, as well.”