Someone came to Reb Yechezkel Levenstein zt'l and said that he had been married for many years, and yet he still didn't have children. Reb Yechezkel advised him to make a kabbalah to learn mussar every day for ten minutes. The man took on this kabbalah, and his wife became pregnant immediately afterwards. People were amazed at the miracle. Reb Yechezkel said, "It isn't a miracle. When a person makes a kabbalah tovah, he becomes a new person. So, even if there was a gezeirah on the previous person, he is now a new person. On this new person, it was never decreed not to have children."
A bachur forgot his tefillin in a taxi. He was worried because (a) the taxi driver was an Arab and was liable to throw them out. (b) Buying a new pair is very costly. The bachur made a kabbalah that if he got his tefillin back before Shacharis the following day, he would be cautious with the kedushah of tefillin for the next forty days. Indeed, the Arab gave the tefillin to a Jewish taxi driver, who contacted his parents, and the tefillin were back in his hands before Shacharis.
At an amusement park, you will see lots of lights and colors, and then you enter a beis medresh, everything appears black and white. It seems that the joy is over there. But this is because you are looking at the external side of things. If you could feel the joy each student has from the Gemara he is learning, you would understand that the color and lights are within the walls of the beis medresh, and with those who serve Hashem and perform His mitzvos.
In a dream, the Yismach Moshe saw two Tana'im in Gan Eden. They were each sitting at a shtender, studying Torah. In his dream, the Yismach Moshe asked, "I have that in this world, too." The answer he received was, "The Gan Eden is in them."
