The greater the frequency and quality of lucid dreaming you experience, the better off you are health-wise, in relaxation and mental clarity. All of these techniques have been tested and most people take about 3 nights to get them to work. Depending on your personal inclinations, these or some variation on them, should certainly strengthen your inner motivation. This isn't the place for a treatise on self-hypnosis, but there are tons of books on the subject and probably many resources available on the net. To embody a metaphysical goal, you need to experience yourself within the goal, living it.
Dreams are great for that.
Lucid dreams pretty well guarantee manifestation. This suggestion may also bring up unconscious barriers to the fulfillment of the manifestations. We may find ourselves living out a situation that is uncomfortable for us. Personally, I appreciate that, because then I can work out whether it's a valid objection to manifestation or not, and consciously work with it from there. Perhaps there's a modification required in my goal to make it completely fulfilling.