This is the nature of human ego: we become so filled with anxieties when we have expectations, because the nature of this world is that you always don't get what you expect.
If we expect good weather and it is bad weather, it's very disturbing. If we expect respect from our husband, our wife, our friends, the world, we are not always going to get it. The more we expect the more we suffer when we don't get. And the more we get, the more we expect and when we don't get the more we suffer. This is human psychology.
Renunciation, detachment means to be self-satisfied. Doesn't matter. We don't need anything. When we are not self-satisfied, the soul tries to find it somewhere else. If we are not finding it in our love for God and our compassion for all living beings, we are going to expect it from somewhere else.
- Radhanath Swami