Traditional belief established that this vein ran directly from the heart to the fourth finger of the left hand. This theory has been cited in western cultures as one of the reasons the engagement ring and/or wedding ring was placed on the fourth finger, or "ring finger". It is to be noted that this traditional belief is a fallacy as all the fingers in the hand have a similar vein structure.  The belief may not be true, but vein of the love story is for each client