There is a technique for imagining money going into your "universal bank account" that I have used with success in the past. It is from the book Ask and It is Given by Abraham-Hicks. It's called the prosperity game. I found one link that leads to a pdf of the method (although it's not taken directly from the book)
The Prosperity Game : Handbook
It basically entails keeping a ledger of an imaginary or "universal" bank account. You start by depositing $1000 dollars in the first day. Every day, though, you are supposed to "spend" the money in your imagination and make purchases of all the things you want to buy. You can write checks for these thing. Then, you withdraw the money from your account. The next day, you deposit $2000 & spend it, then $3000, and so on and so on.
When I was doing this I was actually collecting real deposit slips from the bank and writing them out (as well as writing the deposits down in my notebook/ledger). I also made photocopies of real checks and would write them out for every purchase I made. You will quickly see how difficult it is to spend $50,000 & up every day.
When I was doing this exercise consistently I was seeing some real results coming my way financially. The book Ask and It is Given is filled with 23 exercises like these all related to manifesting abundance. Whenever I have done these exercises consistently my life has improved dramatically.