Therefore, know thou that the True One possesseth invisible worlds which human meditation is unable to comprehend and the intellect of man hath no power to imagine. When thou wilt purify and clarify thy spiritual nostrils from every worldly moisture, then thou wilt inhale the holy fragrances diffusing from the merciful gardens of these worlds. (‘Abdu’l-Baha, ‘Bahá'í World Faith: Selected Writings of Bahá'u'lláh and 'Abdu'l-Bahá’; The Importance of Prayer, Meditation and the Devotional Attitude)
