بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ

BismiLLAH i Rahman i Raheem

"In the name of Allah , the Entirely Merciful, the Especially Merciful".

"In the name of God, most Gracious, most Compassionate"

Word Analysis:

Let's look at the deeper meaning of each word of this glorious phrase:

 The term bismillah, is a combination of three words:
 
     بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ

•  بِ   by, for, with the aid of, through or by means of and points toward that which happens next.

     بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ

•   بِسْمِ = س - م - و :  indicates the means by which something is distinguished, would include a name, reputation,  the very essence of something, the inherent qualities and signs of the existence of something,

       بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيم

•  اللَّهِ :  the word Allah, which is the Arabic name of the One. The Semitic roots of the word Allah extend back several thousand years to the Canaanite Elat, Hebrew El and Elohim, and Aramaic Alaha, pointing toward unity, oneness, the eternal power which includes all of existence and of non-existence.

        بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ

• .رَّ-حْ- مَٰ  = الرَّحْمَٰنِ   

•  رَّ-حْ- مَٰ   =   الرَّحِيمِ   : means mercy, affection, the word raham is used for womb of mother. Mother symbol of love, Allah subhan loves more than 70 mothers. both words rehman and rahim have same root word.

Why do we recite bismiLLAH?

•  Bismillah is said as a blessing before eating food and other actions that are worthy of giving thanks to Allah or asking of His support.

• One of the top priniciples of islamic beliefs. which shows the relationship between Allah and HIS slave.

• To start with BismILLAH is among manners which are the basis of islamic belief,which Allah subhan taught  Prophet Muhammad SAW

Allah says in Surah Alaq:1

اقْرَأْ بِاسْمِ رَبِّكَ الَّذِي خَلَقَ
Recite in the name of your Lord who created.

•  When we start anything with the name of Allah it means that we are asking for the help of Allah, for the support of Allah in that act, He is creator of every thing and everything is in HIS hand so without the help of Allah we can't go on, With the name of Allah whatever we do (ofcourse not wrong deed), a blessings and special help of Allah accompanied us in that work

• Allah is the al-Awal first and al-Akhir the last, al-Zahir (the Outward) and al-Batin (the Inward) he knows what we do and what'll be the consequences of our deeds so with the help of HIS help we can never be failed.
• In Quran every surah of the Quran except Surah Tauba start with BismILLAH

In the  name of

• The phrase "In the name of"  expresses the idea with the blessings of, under the guidance of, as an instrument of, as a representative of, on behalf of, with the support of, or for the glory of Allah subhanhu ta'ala.

• In the name of indicates that one is submitting to, honoring or glorifying that which is referred to.

Allah subhanhu ta'ala:

• Allah the almighty, Creator, our Lord, the immortal how I  introduce Allah its too difficult, because of Allah we are here, We are just symbols of His creation, We can't even imagine him, hence He is with us always anywhere never leave us loves us more than 70 mothers.

• As we are HIS slaves, His creation, so as true slave our priority is to please Allah, to please our Rabb. So a true muslim starts every deed of him by asking Allah's blessings, support and help.

Why just Rehman And Raheem among 99 names of Allah

• Allah is al mighty great creator of the universe. We r nothing infront of HIM. He is jabbar and  could be jabbar with us,  yet He introduces himself with Rehman and Raheem as ALLAH"s Reham or mercy is above all of HIS other sifats subhanALLAH.
• We say Rehman and Raheem in tasmiya because He wants us to call him with the sift(quality) of Rehman and Raheem. How merciful Allah is, subhan ALLAH  Its a great mercy of Allah if we realize it. Allahu akbar,

Rehman and Raheem

• The sifats of Allah rehman and raheem includes the meaning of all mercy in it. Both of these qualities collectively can only be used for Allah.

• Rehman ir rehim is a recognition and honoring that very source of all existence, the source of all blessings, the source of all compassion, the source of all mercy  Allah who gives endlessly to us and who also responds according to our moral integrity, our harmony with all of creation and our love of Allah.

Rehman

•  The quality Rehman is broader and extensive in its view. Allah's mercy as Rehman is on every creation of HIS. Rehman name is only for Allah we shouldn't call others with this name

•  It describes that aspect of the source of all creation which is endlessly radiating, endlessly nourishing, regardless of who or what is receiving the endless flow of blessings.

•  Rehman conveys the idea of fullness and extensiveness, indicating the great quality of love and mercy which engulfs all of creation without regard to any effort or request on our part.

•  Rehman points toward the Beneficent One whose endless outpouring of love and mercy are continually showered upon all of creation.

 Raheem

• Raheem is, HIS special mercy comes for which we have to struggle, We need to ask for his mercy as Raheem.

• Raheem points toward the special rehmah(mercy) and love of the Merciful One which are manifested  as the consequence of one's deeds and in response to the actions and behaviours of the recipient.

• It is in this manner that God takes ten steps toward us when we take even a single step toward God.

• Raheem conveys the idea of giving  reward in response to the quality of our deeds and thoughts.

What are benefits of asking the help of Allah by reciting Tasmiya.

• It depends upon our intentions

• We shall each be rewarded according to what  is in our heart and how we act in the world..

• Those who say these words with thoughts of  selfish gains, or self-centered vain profit in any manner, will receive their just reward... suffering, pain and confusion. Likewise, those who truly dedicate every step of their life to the glory and service of the Ever-present One shall also receive their just reward... peace, love and beauty.

• This phrase is truly an ideal to be expressed from the heart, an ideal to be expressed with the utmost sincerity, an ideal which leads us toward sacred purpose, the purpose for which we have been given life.

Main purpose of Reciting BismiLLAH

• The central idea here is that whatever we do, every step that we take, every breath that we breathe, is done for, because of, and through the essence of, the One who has created us.

• It is not us that does the work, it is not us that makes opportunities appear, it is not us that produces fruits from every action. We alone are powerless. The Creator has given us life and has given us the ability to move and think and feel, yet we are totally dependent upon the Creator for the very essence of life itself.

• In one simple word bismillah expresses our wonder, awe and thankfulness while it also expresses our innermost prayer that we may have the blessing of another breath, another moment of life, and that we may walk on a path of truth and understanding.

• To say bismillah is to humbly offer one's self as a vehicle for the glory and majesty of The One.

• Thus, the beautiful word bismillah is a magnificent reminder of our relationship to our Creator and our relationship to all of creation. 

        (Sources: fee zilalil Quran by Syed qutub, Wahiduddin, Corpus quran, lectures by Dr. farhat hashmi n lots of others)

Allah knows the best. :)