Going against the flow is a decision that has to be made. But it doesn’t necessarily start with “I’m going to go against the flow!” It doesn’t need to begin with an attitude of resistance, rebellion or non-conformism. It may begin with “I’m not happy with my life and the way its going.” Then, when you decide to be true to yourself and find your own way, you suddenly realize this means going against the flow. You may suddenly discover that in being true to yourself and finding your own way you are noticing that everyone else is going in the opposite direction.
But it is always necessary. Necessary for your own sanity, peace and joy.