Spiritual Science as the name suggests is basically a science of judging others through one’s own Mental and Platonic, Spiritual and Intuitive acumen. Different Saints &
Religious Persons followed many different roots of spiritualism. Spiritualism is basically to evaluate oneself from the core of spirit through self realization & self evaluation.
This self analysis gives spritual power to penetrate into the other’s Mental & Spiritual World and to find one’s Present, Past and Future.
There may be many ways in this Mysterious & Occultist World to analyses spiritually like Face Reading called Physiognomy or Hand Writing Analysis or psychology Reading or Crystal Ball Reading or Pure Conscience Reading through Inner Eye.
It is difficult to express the cause & reasons of Spiritualism. It is one,s own Inner Asset.