Actually, it's easy because the word “benefit” is defined in section 3 of the code.
Firstly, it is said to be “an amount of money if there is no obligation to repay it”. This is the clearest case, meaning when someone gives you money, whether it is cash or a bank transfer.
It can also be “a service or property, or the use of property or money that is provided without charge or at less than its commercial value”. For instance, if someone loans you a condo or rents it to you for $100 a night when the normal rental rate is $200 a night, this is a benefit. This means that you are making a profit because you are paying less than someone else would pay for the same property or service.