Some Ans. Questions 1908 by -'Abdu'l-Bahá- 1 Para

These obvious arguments are adduced for weak souls; but if the inner perception be open, a hundred thousand clear proofs become visible. Thus, when man feels the indwelling spirit, he is in no need of arguments for its existence; but for those who are deprived of the bounty of the spirit, it is necessary to establish external arguments (6:6)

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