I have read an accusation from the Traditionalist Catholics that Modern Catholicism has changed under the influence of Judaism its understanding of the Holy Ghost. Modern day Catholicism together with Protestantism involves feeling the workings of Holy Ghost or even attempts at experiencing its presence. I was surprised once to hear a Polish Jew speak on the radio in a similar manner, making use of the etymological relation between "Ruach" and "breath" to picture his vision of experiencing G-d.
I am surprised by the above statements which counter my prior understanding of Judaism. Does Judaism indeed involve practices of trying to get the literal union with G-d instead of just obeying the Law and trying to maintain a close relation as if between a father and a son? If so, how exactly would such an experience of "feeling G-d" look like and how does its notion vary among the different Jewish communities? How does Jewish mysticism vary in terms of practice and aims looking from the perspective of experiencing either ruach ha-kodesh or shekinah?