Buddhism teaches people to let go.
Similar, much of minimalism is about letting go.
Success also requires you to let go as well.
You see, we are holding on to so much negative stuff. Our self-victimizing mind. Our bad habits like gossiping and badmouthing others. Our indulgence with spending money mindlessly to fulfil our short term joys, which keeps us broke. Too much TV. Too much news.
We need to let go so that we can make space for the things that will help us become happy and successful.