How can one know whether the voice coming from within is true until discernment arises?

According to Osho, you cannot verify an inner voice beforehand; discernment is born by walking your own path. Act, risk error, and learn—falling is unavoidable and instructive. Take advice from all, but take orders only from yourself. By experimenting personally, you develop balance and can recognize mind’s tricks; following others only delays learning and may keep you lost.