KNOWLEDGE comes only from EXPERIENCE; Everything else is INFORMATION.
Spirituality is not something to be read, but to be experienced. For example, if we want to know the taste of sugar, we have to eat it and feel it. It is not possible to know “what sweetness is” by reading a fifty thousand page thesis on sugar. Similarly, if we want to get rid of hunger, we have to eat food. If we want to get rid of thirst, we have to drink water, H2O is not enough, (the chemical name is just information). Likewise, if we have to enjoy the sweetness of spirituality, we have to experience it.
When it comes to experience, it will be the same experience for anyone born as a human being - irrespective of caste, creed, religion, color, educated or illiterate, rich or poor, rational or pious, thief or good etc.. When something is experienced, it becomes our KNOWLEDGE. All non-experienced knowledge is only INFORMATION; and there we can see differences in caste, creed, religion, politics and everything. One who experiences spirituality will realize the fact that there is nothing in this universe that is different from our-self.