Halachic Guidance
Torah and halachic sources about zechusim for Neshamos and the ways we can add merit for those who have passed on.
The concept of elevating a Neshama is deeply rooted in Jewish tradition and supported by many halachic sources. Torah learning, saying Tehillim, personal Kabalos, tzedakah, chesed, saying Kaddish, and other zechusim are among the meaningful ways we can benefit the Neshamos of our loved ones. Below is an overview of the halachic foundation for the paths offered on Lzecher.
Learning Mishnayos
The widespread custom of learning Mishnayos for the Niftar is based on the well-known teaching from the Zohar that the letters of "Mishna" (משנה) are the same as "Neshama" (נשמה), indicating a deep spiritual connection between Mishna study and the soul. The Shulchan Aruch (Yoreh De'ah 376) discusses the practice of learning Torah for the departed, and the Mishna Berura and various Acharonim emphasize the special power of Mishna learning in particular. It is customary to complete all of Shisha Sidrei Mishna within the first year after passing, and again on each Yahrzeit. When divided among many participants, the collective completion carries an even greater Zechus.
Reciting Tehillim
Reciting Tehillim has been a universal Jewish practice for centuries, both as a merit for the living and for the departed. Dovid HaMelech composed Tehillim with Ruach HaKodesh (divine inspiration), and their recitation carries a special spiritual power that transcends all other forms of prayer. The Chida (Rabbi Chaim Yosef David Azulai) discusses at length the profound merit that Tehillim generates for the departed, and it is a practice embraced by all communities — Ashkenazi, Sephardi, and Mizrachi alike. Completing the entire Sefer Tehillim as a community multiplies this merit.
Saying Kaddish
The minhag of saying Kaddish for relatives is a very ancient custom that already appears in Midrashim. The greatness of Kaddish is that it is able to elevate the Neshama of the departed and save it from the judgment of Gehinnom when his son, or another person, says Kaddish on his behalf. This is a merit and a mitzvah for the father: when one of his descendants sanctifies Hashem's great, honored, and awesome Name before the entire congregation, and because of him Hashem will be one and His Name one before the congregation who answer Amen Yehei Shmei Rabba, this is a great atonement for the soul of the father. Since his own flesh and blood caused Hashem's great and awesome Name to be sanctified publicly, it becomes a powerful zechus for him (Shu"t Binyamin Ze'ev, siman 202).
Source: Shu"t Binyamin Ze'ev, siman 202More on the greatness and importance of Kaddish
Regarding the greatness and importance of Kaddish, and other matters of elevating the Neshama of the departed, see the sefer Pele Yoetz, entry on honoring one's father and mother, where he writes:
It is therefore fitting for a son that throughout his life, the image of his father should be engraved before him. He should imagine as if his father is crying bitterly from within a burning fire and saying: My son, my beloved, have mercy, have mercy; save my soul from the sword, my only one from the hand of the dog. Even if he thinks his father was a completely righteous person and that his soul delights in abundance, he should imagine that he is giving him delicacies that his father loves, so that his soul may bless him. Therefore, he should not miss even one day of his life from saying Kaddish and giving tzedakah for the soul of his parents. It is very good that he should be accustomed to say each day: May it be Your will, Hashem our G-d and the G-d of our fathers, that You accept with mercy and favor every good deed that I do, whether in thought, speech, or action, and that everything should be for the merit, rest, and elevation of the Nefesh, Ruach, and Neshama of my father, my mother, my father-in-law, my mother-in-law, etc. May it be Your will that his soul be bound in the bond of life. Through this, he will receive blessing from Hashem and from the soul of his parents, etc.
Shnayim Mikra v'Echad Targum
The obligation to read the weekly Torah portion twice in the original text and once in Aramaic translation (or with Rashi's commentary) is rooted in the Gemara (Berachos 8a), which teaches that a person should always complete their Parshiyos with the community. This is a well-established halachic obligation that Jews fulfill every week. Dedicating this weekly learning as a merit for a loved one adds a beautiful dimension of Chessed Shel Emes — true kindness performed for those who cannot repay it. By organizing the 54 Parshiyos among participants, Lzecher enables a full year of Shnayim Mikra dedication.
Personal Kabalos
Personal Kabalos are commitments individuals take upon themselves as a Zechus for the Neshama of the departed. Unlike Torah learning which is divided into discrete units, Kabalos are personal commitments that any number of participants can take on simultaneously — the more who commit, the greater the Zechus for the Neshama. Examples include Shemiras Halashon, daily Tzedakah, Hakaras Hatov to Hashem, lighting Shabbos candles, Hafrashas Challah, Bikur Cholim, or any personal Kabalah. The Gemara in Kiddushin (40b) teaches that the acceptance of a Mitzvah commitment is itself considered as if one has performed it, creating immediate spiritual merit.
The Power of Communal Learning
The merit of communal Torah learning is considered especially powerful. When multiple people join together to learn, the collective Zechus is greater than the sum of its parts. The Midrash teaches that Torah learned in a group carries a unique dimension of Kedusha. Lzecher facilitates this by making it simple to divide and coordinate learning among many participants, enabling families and communities to unite in this beautiful act of Chessed Shel Emes.