Life consists of the five components: form, perception, conception, volition and consciousness. Form is the physical aspect: i.e. male or female, tall or short. It also includes our five sense organs, eyes, ears, tongue, nose and skin. The other four components are the mental aspects of an individual life.
Perception is the function of receiving information through the senses. Conception is the function of analysing the received information and forming a coherent mental picture. Volition is the desire to take action based on this information. Consciousness unites all these thought processes.
One of the immediate benefits of chanting Nam-myoho-renge-kyo is that our perception changes and our sense organs become purified. Thus we begin to see ourselves and our environment in a different light. This may result in us no longer seeing our circumstances as hellish or in our perceiving that we have the power to change them in a positive way.