The Essence of Islam – Volume II — Page 409
The Soul clay and that the greeting: 174 ريا اهل القبور 409 is responded to. He who uses the faculties through which the condition of the graves can be viewed, can obtain knowledge of such relationship. . . . . The faculty of seeing visions is needed for appreciating the relationship of souls with the graves. He who denies this is in error. A large number of Prophets and millions of the righteous bear witness to this relationship which cannot be denied, though the nature of that relationship may not be determined through reason. In short, spiritual sight finally settles all these matters. If the ear cannot see, the ear is not at fault because seeing is not its function. I can affirm from personal experience that the soul has a relationship with the grave and it is possible to hold converse with the dead. . The soul also has a relationship with heaven where it is assigned a station. This is an established verity which is testified to by the Hindu scriptures also. This is a generally admitted verity except in the case of those who deny the survival of the soul. It is the faculty of seeing visions that indicates the nature of that relationship. [Malfūzāt, vol. I, pp. 287-290]. The soul is not something in space. The nature of its relationships cannot be determined. After death the soul has a relationship with the grave which is revealed to those who possess the faculty of seeing visions. They can see the dwellers of the graves sitting in their graves and can hold converse with them. This is established by true 174. Peace be on you, O dwellers of the graves. [Publisher]