Dr Shabir sb had very rightly thrown light over 'every effect has cause "In ayah 2/186 Duaa or calling out to Allah means "obeying His laws whether physical or ethical & the response for that Duaa is the resuls of those efforts .The difference between Momin & kafir overhere is that a Momin treats this concrete results as a reward of his efforts from Allah while a non-believer considers the outcome exclusively due to his efforts.In ayah 10/89 Moses & Haroon are told that their Duaa has been accepted & were directed to to continue with their program as ordained Divinely with steadfastness .Overhere the acceptance of Duaa means that they will be rewarded in the light of their demands subject to exercising efforts .As their Duaa was according to the laws of Allah which was achieved after striving .
Prayers or Duaa are the manifestation of intensity of one's wishes This is a catalyst or stimulant as "residual milk " which makes a change in his potential capabilities & he diverts his entire efforts towards achievement ,Duaa is the creation of intensity in his wishes which brings a revolution in his emotions .(Iqbal terms it as JONOON ) so the result is amazing.Duaa must be according to the laws of Allah & not which is harmful like chinees who are enslaving the under-developed countries through loans & investments .
Duaa leads to astounding revolutionary changes in psychology of a man & in this way he achieves his target .It arouses the latent capabilities but first the aim should be established for which they are aroused & efforts are being made.
A momin decides all his matters under the Divine Guidance therefore he keeps Allah from first to last segment of his efforts. His Duaa is also a link in this chain . Therefor ,he calls out to Allah for its attainment too .Everything takes place as per Allah's laws , so much so that the latent forces in man are aroused too as a result of His laws.By Duaa a man wants to arous the qualities within himself that will help him attain his goal.This is the difference between Duaa & arousing intense desire in oneself.
Allah is present everywhere in the universe being Imminent & Transcendent To plead Allah , no media is required being closer to than his jugular vein .Our relationship with Allah can only be established through His laws .He is beyond Time & Space means tha He is present everywhere in the universe but not present as something is bound to some place .Before Him all present & future & past are revealed at the same time.