Can souls in this life help those in the next life to hear about the Baha’i Faith?

Question:  Are we not able, through love and faith, to make those on the other side hear of the Cause who had not heard of it while on earth?

‘Abdu’l-Baha: Yes, surely sincere prayer always has its effect, and it has a great influence in the other world.  We are never cut off from those who are there. The real and genuine influence is not in this world but in that other. 

(Notes of ‘Abdu’l-Baha’s answer, October 18, 1911, Paris, France; Star of the West’, vol.2, no. 16, December 31, 1911)

Will souls hear about Baha’u’llah in the next life?

Question: If one refuses the Cause of Bahá'u'lláh during his lifetime, may he hear of it after death?

‘Abdu’l-Baha: Yes, he will hear of it in his next life, but through the mercy of God alone, not through his own ability.

(Notes of ‘Abdu’l-Baha’s answer, October 18, 1911, Paris, France; Star of the West’, vol.2, no. 16, December 31, 1911)

“materializing of spirits through mediums”

Regarding the materializing of spirits through mediums: A person finding himself in a state of trance, or unconsciousness, is like one who sleeps; whatever he feels and sees he imagines to be matter and of material things, but in reality they are wholly immaterial. 

- ‘Abdu’l-Baha  (From a Tablet to Ella Goodall Cooper; Star of the West, vol. 2, no. 15, December 12, 1911) 

(To read the entire Tablet please visit Tablets of ‘Abdu’l-Baha in Star of the West)