[freflellalafe]

So, in other words, we always have a choice of how we will react to situations in life? And we can choose to be happy with or without a car (or with or without a certain relationship in our life, for example), by allowing change to occur, and staying detached from the desire to keep things as they were before. Am I on track, as a very new student, with this idea of renunciation?

That's a good attitude to have in practise, however renunciation is another thing entirely. Renunciation is like choosing not to have a car even though you know you can just to experience what it's like not to have a car and to learn from it.