getting undefined all the time "main.js":

```
var dbAccess = require('../dao/dbAccess');
dbaInstance = new dbAccess();
var wordPool = dbaInstance.getWordPool();
console.log (wordPool);

```

and "dbAccess.js" contains:

```
var DatabaseAccess = function() {}

DatabaseAccess.prototype.getWordPool = function () {
    RoundWord.find({},'words decoys', function(err, wordPoolFromDB) {
        if (err) throw err;
        //console.log(wordPoolFromDB); -working ok
        return (wordPoolFromDB);
    });
}

module.exports = DatabaseAccess;

```

why is it not working?