Baal HaSulam, “A Speech for the Completion of the Zohar”: Throughout the generations, those who ascended and were rewarded with Dvekut were few, as our sages wrote about the verse, “I have found one person in a thousand; a thousand enter the room and one comes to the Light,” meaning to Dvekut and attainment.
Thus, in our days, in the generation of the Messiah, every thousand people who enter can come out to the Light, to attainment. Of course, this takes great effort since otherwise we will not have spiritual vessels. However, from above there are no limitations anymore and everyone can receive the support of many people along the way who yearn for the same thing.
Besides, the world is deteriorating and is heading toward an abyss and annihilation, which also provides reasons that justify the spiritual process in our eyes. Even the ego itself agrees to and supports it, hoping to make a great profit.
So the door to the spiritual dimension is really open for everyone in the generation of the Messiah. It is because the Reshimot (reminiscences) that are revealed in us are so corrupt that we are totally opposite from the spiritual world and are at the most distant point from it. So there are no more limitations here, everyone who sets off along this path is promised from above that “if you make an effort, you will receive.”
Before even great efforts were not a guarantee for success. A person could have made great efforts and still not attained anything, but someone else could have entered thanks to his help. However, his contribution was preserved. Thus the system has not reached the final stages of correction.
On the other hand, the time of the final state has come. We are correcting such a deep layer of the system that the previous accounts are nullified. Everyone who makes an effort will receive the reward in his hands, in the spiritual vessel.
From the 4th part of the Daily Kabbalah Lesson 12/22/13, Writings of Baal HaSulam