Sometimes things happen that change what you see. You may have a view of a person or situation that works for you and then something happens that changes your viewpoint drastically. Say, you have a colleague that you see as dedicated, steadfast and non-judgmental and then you find out he or she has been deliberately undermining you and others.
When you get turned around, you may as well enjoy the view. Most likely, a truth or something previously unknown has been revealed. Put yourself firmly in the now and create your path forward from there.