Literally, "In the Name of Allah"
There is no way for any one translation to capture the many facets of this beautiful phrase Bismillah ir-Rahman ir-Rahim.  Here are some poetic renderings that attempt to capture some aspects of the meaning without being literal translations:

• With every breath that we breathe, may we be ever aware of the Divine Presence, the Source of all that we receive.
• With every step that we take, may we always honor the Light which guides us, the Source and Nourisher of all of creation.
• Every moment of this life is filled with your eternal radiance my Beloved, You are the Beneficent One who endlessly showers all of creation with nourishment and blessings, and the One who generously rewards those who live in harmony with Your Divine Will.