Well,Dewali is traditional festival in India as for as know.I have seen that in the movies.It looks good in the movies when the celebrate the way they celebrate its just awesome,people get together and wearing different colors.They burn the candle and have parties lunch dinner together.In every country people have their traditional cermonies. In India Dewali is the main festival.In our country Pakistan we have to celebration Eid ul Azha and Eid ul Fitar .these 2 Eid also celebrated in India because half of the population in India are Muslims

You are saying it rightly. The spiritual aspect of the festival is not even known to the people. If the festival is celebrated at least as a tradition of fathers and forefathers it would have been nice. But people are losing sight of both these aspects.
They only celebrating it as a family get together.
They are following all formalities of the festival but forgetting the prayer of Goddess Lakshmi.

Slowly after seeing the sale of the Idols of the Goddess Lakshmi people are coming to know that she should be worshiped on Diwali festival.

Most of them are bringing the Idol and doing some prayer. But not doing the worship in a proper manner.

People should know that the Goddess Lakshmi should be worshiped midnight at 12 O’CLOCK with all in red color. She should be decorated with red saree, the flowers should be red in color. The gold ornaments and other jewelry should be kept before her or she must be decorated with this jewelry. The pooja will take about 1 hour. Everything should be kept clean and a coconut is broken in front of her. There will be some 1 rupee coins with which she is worshiped.

After breaking the coconut the Aarthi will be given and the prayer will be closed . Some people do not perform the worship using coins. It does not matter. This is not compulsory.

As you rightly said this mind, reasoning, and imagination all depends upon the strength of the Soul.

Now the point is how to strengthen the soul?

The light makes it strong. Will it automatically make it strong? Every soul is given an opportunity to make it strong. What are the tool useful for this? Again here the tools are mind and reasoning only.

To have good thoughts, to speak nice words, refraining from the activities that cause sorrow to others, through regular discourses with eminent people in the society, maintaining a well-disciplined life etc. will make the mind attract more divine light.

One interesting aspect that should be kept in mind is that all the above things should be validated and should be put to the test by reasoning only.

Thus all these things are intertwined and one needs a good understanding of the subject which will not come easily to a person but through the blessings of a Guru only.

That is why the importance of GURU OR MASTER IS always holds the greatest place on the ladder of importance in gaining knowledge.

I always say that the most attractive part of my body is my mind. I value intellect and knowledge and always find ways of stimulating my mind and keep it fresh and healthy through food and exercise. Also by being influenced by persons known to be good for soul and social and spiritual circle. Otherwise i will be putting my mind at risk for destruction and evil thoughts and degeneration.

it also struck me when you mention in your above comment that we have angels giving us words and thoughts. I think the mythical name for such an individual is a muse. I first heard this reference and dramatic presentation in a television show and it showed how influenced and dependent we are on such individuals. by what you said these mythical beings may have some reality.