Help me "not access because it does not exist"

folder: models/user.js
controllers/user.js

app.js

```
var express = require('express'), load = require('express-load');
var app = express();

load('models')
  .then('controllers')
  .into(app);
```

but

```
models/user.js
module.exports = function(app) {
console.log(app.controllers); // not work?
}
```

Can not access because it does not exist

