So something triggers more dopamine in our brain, and that gives us a desired to catch the thing that triggered the dopamine? Is that it? Could we say that dop

So something triggers more dopamine in our brain, and that gives us a desired to catch the thing that triggered the dopamine? Is that it? Could we say that dopamine is what causes us to experience "lust"? Do we crave for dopamine, or is experiencing dopamine the same thing as experiencing a graving? Do nicotine addicts have a lot of dopamine in their brain when they crave the next cigarette? Then when they get the cigarette, does that remove the dopamine (-activity) from their brain?