Love.
From experience as a believer, loving everyone and building relationships in love is how you can get the opportunity to become that light in someone's life; that's how you can get into that position. You have to build a relationship with the purpose of allowing God to show Himself through you.
There are tons of scripture references I could use for this topic, but here are just a few: Matthew 22:37-39, 2 Corinthians 4:6, Matthew 5:13-16 Good answer above, also the encouragement, counsel and example of your life is a light to others. You are the only Bible some people will ever read.
Spreading light in the life of others
Most people light fires for warmth. Others do it for desctruction, and those people are called arsonists.
You can use light and sound to achieve so many things in everyday life. Sound is used to help people hear what others are saying while light is used in most case for vision.
either they want to get revenge or they dont have a life.
A desire to help others.
Light in Buddhism represents that we should put others in front of ourselves. It also symbolises a guide through life and through the circle of life.
Some people can't afford it and others don't have to get insurance because they don't have anyone to leave it to.
people traveled by wooden boats. Some boats were good in shallow water but others were not and some were light and fast but others were slow and heavy.
There is no one group. All people have a right to life.
A guiding light is someone who a person admires very much. A guiding light would have had an important influence on a persons life. It is someone who is an inspiration to others.
Looking to the past can help people understand more of the future. There is much to be learned from others and ancient art can shed new light on something.
Psychopathy aside, some people have no regard for others because it does not affect them if they don't. Such is life - sorry.