"Kaf HaChaim" - A Rabbinical Descendant of Benjamin
The Tribe of Benjamin had offshoots among the Ten Tribes but the main body of the Tribe stayed with Judah.
Within Judah indications are that Benjamin was more to be found among the Ashkenazim of Germany and among the Sephardim.
Benjamin is not scholarly but here and there great scholars emerged from his ranks.
These included Yaakov Chaim Sofer (1870-1939) author of an Halachic Compendium of Laws for Daily Conduct known as "Kaf HaChaim" literally the "The [hand] Palm of Life."
This work is both legalistic and mystical.
Benjamin may not concentrate on intellectual matters but he can do so if he wishes. He also had a spiritual side and may be interested in Esoteric Studies.
The author of Kaf Hachaim had a traduition that he was descended from Benjamin.
Yaakov Chaim Sofer (1870-1939)
https://en.wikipedia.org/wiki/Yaakov_Chaim_Sofer
was a Sephardi rabbi, Kabbalist, Talmudist and posek. He is the author of Kaf Hachaim, a work of halakha that he came to be known by.
Sofer was born in Baghdad, Ottoman Iraq. He studied the Torah under Abdallah Somekh and the Ben Ish Hai. In 1904, he journeyed to Ottoman Palestine together with colleagues Sadqa Hussein and the Asei HaYa'ar in order to meet with the Rishon LeZion, known as the Yisa Berakha, and to pray at the graves of the righteous. After visiting Jerusalem, he decided to settle there permanently. He studied in the Bet El yeshiva in the Old City of Jerusalem, well known for the study of kabbalah. In 1909 he moved to the newly founded Shoshanim leDavid yeshiva. It was here that he composed his works.
In addition to the Kaf Hachaim, Sofer authored:
Kol Yaakov: on the laws of writing torah scrolls, tefillin, and mezuzot, as well as on the tefillin in general
Yagel Yaakov: a compendium of Shabbat drashot (sermons) delivered while in mourning for his father
Yismach Yisrael: novellae on the parsha, the weekly Torah reading.
Chayim Ad Haolam on the aggadah of the Talmud
https://www.judaicaplace.com/kaf-hachaim-10-volume-set-hardcover/khc10/
This monumental work, is considered a classic by both Sephardi and Ashkenazi Jews, comparable to the Mishnah Brura. It includes the halachic approaches of all of the Rishonim and Achronim, as well as those of many kabbalistic sages. It covers all of Orach Chaim and parts of Yoreh De' ah.
Kaf Hachaim earned the ardent haskamot {approbations] of Yerushalayim's greatest sages, among them Rav Yaakov Shaul Elyashar, Rav Yosef Chaim Sonnefeld and Rav Chaim Berlin, the son of the Netziv.