Everyone on this earth knows about sun rays and their benefits. It is also not a hidden fact that without sun rays Human Beings, Plants, Flowers, Animals can't survive. This science of colours exists on this earth since ages for which our Shastras are the existing proofs.
The sun rays have seven colours those have already been universally accepted and proved by scientists and termed in short form as V I B G Y O R, i.e.:
1.     Violet
2.     Indigo
3.     Blue
4.     Green
5.     Yellow
6.     Orange
7.     Red
According to our Yogashastras there are seven main chakras. It is admitted by most knowledgeable persons in India and abroad, and the medical science recognises them as glands.
Each chakra and its related colour needs attention. From time to time, you may find a natural affinity for certain frequencies of colour because each colour vibrates with one or more of the chakra centres. Your body will begin to respond to the colour of the chakra you are developing and if you are attentive to your body's language you will be able to detect this response.
The first chakra starts from mooladhara which signifies red colour and seventh chakra at head which signifies violet/blue colour.
It is duty as well as Dharma of every human being to keep his body in sound healthy condition. If he/she is unhealthy, can't perform his/her day to day duties towards his/her liabilities, religion and as well as for the nation. It is must for all of us to be in sound health. For performance of our day to day duties, and to keep ourselves in sound health, it is must to take pure foods (Satvic Aahar), pollutionfree air to breath, pure water and pure thoughts, beside which daily meditation is one of important factor, to keep our mind and physical body in good condition. While taking our routine foods it should be kept in mind : when it is to be taken, what is to be taken, and how much is to be taken.
Good and pure foods if not taken properly, can't be digested by our body's digestive mechanism. Food should be masticated very well before swallowing. It should be taken in adequate time and not in a hurry. God has gifted us brain which indicates the fullness of stomach. On other words we can say foods are to be drunk and juices are to be eaten.
One should be regular to exercise Yoga Asanas in daily life. He should perform Pranayam (Deep breathing) also with which body remains active and strong. Our goal should be to achieve healthy mind in our healthy physical existence. Abdomen bowels should be cleaned at regular interval with the help of Nauli and Kunjal Kirya. Otherwise the excreta which remains inside our body slowly piles up and makes inside dirty and then the filth, in turn becomes a disease, resulting to illness and keep us running to doctors and hospitals. Then we have to spent a lot of money and time for our physical ailments.
The medicines are so costly that everybody can't afford to purchase them. In certain diseases some medicines have to be procured from abroad even. To cure ourselves we have to bear the side effects/adverse effects of these Allopathic medicines also.
Accordingly, we can say that our need is less cost-effective and simple medicines.
The science of Colour therapy is the science of Sun Rays and is very simple and most beneficial therapy. The sun rays have an abundance of elements favourable for health. To be cured with this therapy one need not to spend ample amount on these medicines. You can simply treat your neighbours, friends as well as yourself at a very economical cost.
Since ages, people are worshiping the sun as they know that their very existence is dependable on sun. I think that is why sun is known as life giver too, so is worshipped like God. And, only because of this reason shlokas about greatness of sun exist in Upanishadas and Shastras. People from western countries have learnt about sun rays therapy from the east and practising for the benefit of mankind.
It is a fact that sun rays have properties and strength to cure many acute/chronic diseases.
This book is based on my experiences as well as informations collected by other naturopaths showing very much positive results.
As in Ayurveda there are three reasons for the disease. It is due to disbalancing i.e. either excess/deficiency of following main factors in human body. Body contains three elementary substances, microcosmic representatives of the three universal forces. They are:
1.    VAYU - Air/Wind
2.    PITTA - Bile
3.    KAPHA - Phlegm
The primary colours of sun rays are:
1. Green .          2. Red              3. Blue
They are available in most of the herbs, but in colour therapy science you are not to trace them or make the ashes out of them to prepare the Ayurvedic medicine and to undergo so much of labour and difficulty.
It has been observed that this type of treatment is very simple, effective and within the understanding power of average man. The main advantage of this treatment is that you become your own doctor without having any side effects, which most of the patients also realise.
Hospitals are full of patients and the Government is making plans for more, but it is beyond the capacity in accomodating each patient for getting suitable treatment. I will be highly obliged if the organisations working for welfare of humanity, act on this type of Therapy to get rid of illness from different diseases. In fact, colour therapists can treat any disorder be it mental, emotional, metabolic or physical within a very limited cost. They offer an extra means of promoting well-being which requires no extra money but demands only sustained effort from patients.