If you have got concern with something, then the idea of renunciation, or not renunciation, arises. You are concerned with the Self, as you understand it correctly. And if there is nothing else that can interest you, then you have renounced perfectly, and you have done the best thing in the world. That is my answer. Of the personality, of the old way of being, the old way of seeing things, and understanding things to the new way of being more interested in the Self.
Transformation is actually a state of consciousness.
When you are aware of something, consciousness envelops that thing, and it takes the shape of that particular thing, whether it is a human being, or any particular object of the world. And, you are transformed at that time into the form of the object which you are thinking in your mind. But, if the object does not exist for you, as you have concluded just now they are not matters of concern for you, you have nothing to do with anything in the world, and then the consciousness transforms itself into its own true nature. Now, we are empirically conscious, sensorially aware, and filled with object consciousness. There, in that condition of perception of things, a psychological transformation takes place.