So father is not happy. Similarly, we conditioned souls in this material world, we are suffering so much, living like wretches and rascals. So Kṛṣṇa is not happy. Therefore He comes personally to teach us, yadā yadā hi dharmasya glānir bhavati, tadātmānaṁ sṛjāmy aham (BG 4.7).
So when Kṛṣṇa comes, He comes in His original form. But unfortunately, we understand Kṛṣṇa as one of us. He is one of us because He is father, we are sons. One of us. But He is the chief. Nityo nityānāṁ cetanaś cetanānām (Kaṭha Upaniṣad 2.2.13). He is more powerful, the most powerful, supreme powerful. We have got little power. That is the difference between Kṛṣṇa... We cannot be equal. Nobody can be equal with Kṛṣṇa, or God, or greater than Him. Everyone, under Kṛṣṇa. Ekale īśvara kṛṣṇa āra saba bhṛtya (CC Adi 5.142). Therefore everyone is servant of Kṛṣṇa. Kṛṣṇa is the only master. Bhoktāraṁ yajña-tapasāṁ sarva-loka-maheśvaram: (BG 5.29) "I am the enjoyer only. I am the proprietor."