Fulfill all the actions of salah, whether they are Sunnah or mustahab, or whether they are tasbihat or dhikr, as they ought to be performed.
Remember that just as the outward cleanliness of the body had caused an effect on internal purity, similarly, in fact, to a greater extent, the actions of salah have an effect on the heart, and create effulgence.
Just as a sick person taking medication definitely benefits by it, even though he is not aware of the effects of the ingredients of the medication, similarly by fulfilling all the postures of salâh, you will definitely attain benefit, even though you are completely unaware of its wisdoms and secrets.
Extracted from Tabligh-e-Deen, Imaam Ghazali رحمه الله
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