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Know that there is neither overcrowding nor collision between al-‘âlam of light, al-‘âlam of heat, al-‘âlam of air, al-‘âlam of electricity, al-‘âlam of gravitation, al-‘âlam of athîr, al-‘âlam al-mithâl and al-‘âlam al-barzakh. Those fellow ‘âlams exist together with you wherever you are, without mixing or hindering each other. In the same way, numerous vast ‘âlams can exist together in this narrow ‘âlam of the earth.
Just as the air does not hinder our walking, nor does water prevent us from travelling, and glass does not obstruct light from passing through, the solids do not obstruct the penetration of X-rays, the nûr of the mind and the rûh of malâikah, and in iron, there is no barrier for the motion of heat and the flow of electricity; nothing hinders the circulation of gravity, the motion of the rûh and its servants and the flow of the nûr of the mind and its instruments. So, this dense ‘âlam cannot prevent nor hinder the rûh beings from their rotation, the jîn from their motion, the shaytan from flowing, or the malâikah from their journey.