Although I haven't yet been able to do it with consistency, feeling as or acting as if I were financially independent makes me much more open to financial opportunities. There's an immediate shift, almost as if I've been hoisted up onto a playing field I've always felt that I don't belong at. But this only lasts for a half an hour or so, usually -- maybe thinking about the side effects will help with the consistency (start worrying about capital gains tax, perhaps)
Another effect I notice is that I feel much more generous and more willing to help others (in every way, not just financially.) So this is actually very relevant to being a better person in the present moment, independent of the goal being achieved or not.
btw., I recommend The Millionaire Next Door and The Millionaire Mind by Thomas Stanley -- both are a down to earth and glamourless look at the wealthy, lots of talk about frugality and the habits of millionaires in various situations (shopping for shoes, etc.)