The reality of the invocation is when the Invoked takes possession of the heart, and He is One. Separation and multiplicity exist before that for as long as the invoker is in the station of invoking with the tongue or with the heart.

The realization of 'La ilaha illa Allah' is one of the states of the heart that can be neither expressed by the tongue nor thought out by the mind.

If you do not know the blessings you have when you have them, then Allah will teach you about them by taking them away from you

The signs of the soundness of the servant's love for his Lord are three: absence of self-willing; pleasure in every event which takes place through divine decree; and seeing the perfection of the Beloved in everything and being content with Him in everything through submission to Him in all things.

Your Saying "God is Most Great" does not mean that He is greater than something else, since there is nothing else alongside of Him, so that it could be said that He is greater than it. Rather, the meaning of Allahu Akbar is that He is much too great to be perceived by the senses or for the depths of His Majesty to be reached by reason and logic, and indeed, that He is much too great to be known by an other-than-Him for truly, no one knows God but God.

If a tablet is not wiped clean of it's figures, nothing can be written upon it. A single heart cannot serve as the place for two things, let alone for several things. If the heart is filled with the forms of sensory perceptions, it is rare that it would perceive the meaning of Allah, even if one were to say Allah a thousand times. When the heart is empty of all that is other-than-God, if one uttered Allah only once, one would find such bliss that the tongue could not describe.

The ambition of the spiritual traveller never wants to stop with what it has been shown save that the voices of reality call to him, "what you seek is ahead of you.