Jews, why is the Book of Psalms usually neglected?

I'm not saying it's entirely neglected, but I've asked many jews and they usually focus primarily on the Pentateuch (not that is wrong) and these strange writings like Talmud, Kabbalah and Zohar. I heard Talmud might be part of the Oral Torah, but what in the world is Kabbalh, Zohar and these weird mystic jewish writings? Anyway, I'm sure jews read a few psalms for ceremonial and service purposes but I they don't seem to 'deeply' converse in the Psalms, while I met many Christians that do.