BS”D
Shalom and thank you for your question!
There are certain Halachic opinions that a person who converted to Judaism does not make the blessing, ‘shelo asani goy’, ‘who has not made me a gentile.’ If his parents converted however, even if his mother was pregnant (with him) when she converted, he does make the blessing.
The Alter Rebbe, Rabbi Shneor Zalman of Liadi, explains that the blessing ‘shelo asani goy’ is not only on the matter of birth, but also because we are thanking G-d for not having received a non-Jewish soul during our sleep, so that a convert also says this blessing.
This is the reason the blessing is said every morning, as opposed to saying it on one occasion only. Chassidut teaches us that the soul ascends on high when we sleep at night and could be susceptible to receiving a spark of a gentile soul, so this is why we thank G-d every morning anew that it didn’t.
There is a story about a Jew whose house burnt down among several others in a town where there was a fire. People noticed that the man made the blessing thanking G-d that he was not a gentile, and asked him why he did so. He answered that in the gentile homes each one had his idol hanging there on the wall, so that if the house was burned down, the person’s ‘belief’ went with it…”But I” said the man, “Even though my house was burned down, my G-d lives and exists, and my trust in Him is strong that I will build my home as before, and thus I made the blessing, ‘who has not made me a gentile.'”
The simple meaning of the mitzvah to recite the blessing, is that we are thanking and praising G-d that we merited to be part of the Jewish nation, the nation chosen by G-d to receive the Torah and be obligated to perform the commandments.
The nations of the world however, are obligated to perform the seven Noahide commandments whose purpose is to ensure that the world functions within a just and ethical framework. The Jewish people however, merited to receive the six hundred and thirteen commandments of the Torah.
In the talks of the Lubavitcher Rebbe, he encourages the Jewish nation to be concerned not only about reaching out to Jews all over the world and help them keep their identity, but also to reach out to the nations of the world and teach them about the seven Noahide laws, as Maimonides, the Rambam, teaches us. He teaches us that the Redemption will be brought about , among other things, when the nations of the world will be brought to a state of learning and keeping the ways of G-d, which for them means keeping the Noahide laws. We, the Jewish people, should be happy and feel privileged that we merited to be Jews, and have ‘a G-dly soul, literally part of G-d above’, as Chassidut teaches us. We are children of G-d with very great privileges and rights. We must realize however, that the completeness of our service involves being ‘a light unto the nations’, to teach the nations of the world truth and justice, belief in G-d, and that they should fulfill their role in the world also, that of keeping the Noahide laws.
The rectification and completeness of the created world, is when the Jewish nation carries out its role, and makes sure that the other nations also carry out theirs.
In Genesis we find that G-d tells our father Abraham, “Through you shall be blessed all the families of the earth.”
