Being that Jews are one entity a betterment in any Jew is a betterment to the whole
By the Grace of G-d
Chanukah, 5736
Brooklyn, N.Y.
Mrs....
Brooklyn N.Y.
Blessing and Greeting:
This is to acknowledge receipt of your letter..., enclosing an article in which it is mentioned how Jewish children have fallen under most undesirable influence. You ask if there is anything you can do in this connection.
It is one of the basic tenets of our Torah, called Toras Emes, that everything is by Divine Providence. Hence, since the said article came to your attention, there is some purpose to it, and it is certain that there is something that you can do.
References
Published: Teshura (Wenger, 7 Sivan, 5771), 54.
Note: This letter is from the Archives of Rabbi Nissan Mindel A"H, the Rebbe's personal secretary entrusted with writing up the Rebbe's orally dictated responses. The “Nissan Mindel Archives” are comprised of secretarial copies, including first drafts, and may have subsequently been published with editorial changes. Therefore the letter as it appears here may not be the final signed version.
See Torah Or 86c.
Actually the doing can be carried out in two ways: firstly, to strengthen Yiddishkeit in the immediate environment and in a direct way, by example and precept. Secondly, to reach out to a faraway place, and to benefit fellow Jews whom one does not even know. This can also be done indirectly, inasmuch as all Jews constitute one entity, one organism. We see that in connection with the health of the physical body, if it is necessary to strengthen any organ or part of the body, this is done in a direct way if that part is accessible. But if it is not accessible, the affected part is treated indirectly by strengthening the general health of the body, since a benefit to any part of the body is a benefit to the whole.
Similarly in connection with the Jewish people. When a Jew strengthens his own adherence to the Torah and Mitzvoth, and that of his family, especially also those around him—this benefits all Jews everywhere, and also strengthens their identity and involvement with Yiddishkeit...