The Tzvi LaTzaddik of Bluzhev zt’l said, "It is impossible for us to know when the geulah sheleimah will be, but I think it will be on Lag b’Omer, on Reb Shimon’s day because it is a very pure day, a day of salvation."
When the Bas Ayin moved to Eretz Yisrael, Rebbe Mordechai Chernobler zt’l wrote to him, “Pour your eyes out before Reb Shimon. If I could go to Eretz Yisrael, I would go to Reb Shimon’s grave and storm the heavens until Moshiach comes.”
At his father's yahrtzeit, the Minchas Elazar of Munkacz zt'l would sing יוחאי בר at his father's grave. This is because his father, the "Darkei Teshuvah," wrote three sefarim on Tikunei Zohar, which was written by Reb Shimon bar Yochai.
One year after singing יוחאי בר, the Minchas Elazar discussed the words of the final phrase, לומדיך הם העם אשרי, "Fortunate is the nation who teach you." He asked why it doesn’t say תורתיך לומדי, "who learn your Torah," or ספריך לומדי, "who learn your sefarim." Why does it state לומדיך הם that they teach Reb Shimon? What do they teach Reb Shimon?
The answer is that the tzaddikim in their grave often don't know about the hardships that the Jewish nation is going through. So when one comes to a tzaddik's grave, הם לומדיך, they teach the tzaddik about the problems we experience so that the tzaddik can daven for Klal Yisrael.
After explaining this, the Minchas Elazar fell on his father's grave and told his father about the many gezeiros and hardships of his time.
