Imam in this regard has undertaken very insightful discussions in his famous book titled "Discipline of prayers".
According to Imam Khomeini, The stronger this viewpoint, the more spiritual his worship and the stronger the spirit, until, if, with the help of Allah and the perfect holy men [awliyā'], he reaches the truth of servitude and its core; he will catch a glimpse of the secret of worship.
In all the worships especially (in) the Salat which has a position of comprehensiveness [jāmi'īyyat], and is, among the worships, like the Perfect Man, and like the Greatest Name (of Allah), or rather it is the very Greatest Name these two positions, i.e. the position of the Glory of Lordship, which is a fact, and the position of the humility of servitude, which accompanies it, are occult. Among the recommended acts the qunūt, and among the obligatory acts the sujūd, have particular peculiarities to which we shall refer later inshā' Allāh, the late founder of the Islamic Republic explained.
It should be noted, however, that absolute servitude is of the highest degrees of perfection and of the loftiest positions of humanity, of which no one has any share except the most perfect of the creatures of Allah, Muhammad (PBUH) at the top, followed by the perfect walīs (the Guardians).
The others are limping in servitude, and their worshipping and servitude are endued with causes, only with the steps of servitude one can reach the real absolute mi'rāj.
That is why the noble āyah says:
“Glorified is He who carried his servant by night…”
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