The parsha begins "Adam ki yakriv michem korban laHashem", when man brings from yourself a [voluntary] sacrifice to G-d, and continues with the details of the sacrifice.

Some of the commentaries note that the extraneous use of michem,  from yourself, comes to teach us that sacrifices are of little value when given from our pockets or from our hands alone. Like our prayers, the source, the inspiration, must begin deep inside ourselves. Only then does our sacrifice have a purpose and a true existence.

Getting a business running involves sacrifice and action, but success only comes when the sacrifice is rooted in our deep passion. When our sacrifice comes from within ourselves, then our business will have a heartbeat and the means of survival.