The magnificent invocations taking different forms for each occasion renews one’s faith and strengthens one’s relationship with Almighty Allah. Likewise, they show recognition from the servant of Allah towards His constant bounties and never ending favors. These invocations are to be recited in thanks of His graciousness, bounties and generosity. They are also a way by which one seeks refuge with Allah. Lastly, by them the servant seeks refuge while relying on Him alone, from the disturbances of evil and vices of the soul and all creation possessing evil, as well as that of every trial and disaster.
In the invocations a confirmation of Unitarianism of Allah the Almighty and Honorable one. It also signifies a declaration of innocence and ridding oneself from associating partners with Him. The invocations are done in submission to the Oneness of Allah as the Sustainer of the universe and Him as the only one worthy of worship.
Likewise, whoever is earnest in following the supplications authentically narrated from the Prophet (Peace and blessings be upon him) will be consistently expressing recognition towards the facts that Allah (the Mighty and Honorable one) alone gives and takes life, provides food and drink, poverty and wealth, clothes and gives guidance or leads astray. Also, through the invocations, one admits that Allah alone is worthy of being worshipped, taken as a God to be submitted to, such that all forms of worship are to be addressed to Him alone.
So for this reason, it's befitting that a believer preserves these magnificent invocations with proper etiquette. Every invocation should be in its specific time during the day and night and in accordance with how it was narrated in the Sunnah. This way one will achieve the great reward that comes with them and be able to understand the gracious meanings behind them. To add to that, it is imperative to do so in order to become the ones Allah praised by saying:
"and for men and women who engage much in Allah's praise, for them has Allah prepared forgiveness and great reward". Surah Al-Ahzab
It's well-known that these specific invocations related to the actions of a Muslim's daily routine have received much attention amongst Muslims. However, many of them are unaware of which are established as Sahih i.e. authentic from the Prophet (peace and blessings be upon him) and those that are (weak) i.e. are not established from him (peace and blessings be upon him). Also, they may not be aware of the meanings of these magnificent invocations nor their honorable objectives. Thus, these Muslims end up missing out upon their great benefit as well as deep reaching impact.