Spiritism, spiritualism or hypnotism, cannot help us on the spiritual path. To know ourselves and to know God, that is called spirituality, frankly speaking. What things help us to know ourselves, and what is not helpful, and how we can separate our self from the senses and intellect, that is a practical subject. And that's really called spirituality. 

Get the Book "SPIRITUALITY - What it is" by Sant Kirpal Singh from here (Download):
http://www.kirpal-sagar.co.in/english/en/media-sidemenu/books-scriptures/books-sant-kirpal-singh.html

A German Version you get from here:
https://www.amazon.de/Spiritualität-Unity-Man-Einheit-Menschen/