Complex sentence: Sephardim believe that every beracha (blessing) said elevates the "neshama" (soul) of the deceased, and so one should eat a variety of foods to be able to say more than one beracha.
Split into simpler sentences: Sephardim believe that every beracha (blessing) said elevates the neshama, (soul) of the deceased. Therefore, one should eat a variety of foods to be able to say more than one beracha.