Father is the cause of the sons, but the sons may be different. Not exactly all the sons are on the equal pattern. Similarly, we are originally all part and parcel or sons of God. Therefore God's qualities are there in us, very minute quantities, because we are very small. So the quality is there. Just like drop of water from the oceans, the taste it is there. The taste of the ocean, salty, is there in the drop of ocean water. There is no difference. Only the difference is quantity. In quality they are one. Quality, that salty taste, quality, that is one. Any drop of the ocean, you can take the salty taste, but the drops may be of different quantity and the ocean is very, very big. This is called acintya-bhedābheda, simultaneously one and different. One in quality.
So qualitatively we are one. God is good, so in quality we are good; we are not bad. But why you have become bad? Because we are now differently dressed. Dehātma-buddhiḥ. A dog is thinking, "I am dog," and a man is thinking, "I am man." A cat is thinking, "I am cat." He is neither cat, neither dog, neither human being. He is part and parcel of God. Ahaṁ brahmāsmi. This is self-realization: "I am not this body." Just like we are differently dressed. So I am not the dress. I am human being; you are human being. Paṇḍitāḥ sama-darśinaḥ (BG 5.18). Therefore those who are learned scholar, they do not find any difference between cat and a brāhmaṇa, because the brāhmaṇa is also a living entity and the cat is also a living entity, differently dressed.