Another way to look at the "symbol system" is to look at your religion, or philosophy if you don't have a religion. If a person is religious, their symbol system is largely, but not wholly dictated by their religion. If you are not religious, your symbol system is dictated by the way you see things, relate to them, and base your decisions, i.e., your philosophy.
A strong look at what you believe is needed to determine what different visions mean to you. Color is one way we relate to the world, but it is largely symbolic because of that. Think of where you see the colors that you see in meditation and everything else you see in meditation, in relation to where you see those things in waking life, then relate that to how you feel about those things and situations those things put you in. That will help you determine your own personal symbol system.
It does take time, and when I say that, I mean years. Not only that, but our symbols change their meaning over time in our lives, so we have to constantly redefine them. An example of what I mean by this is if a two year old dreams of a lollipop, that is a great thing, and could represent treasure of great value, now thirty years later, let's say this same person has developed sever periodontal disorders that lead to sensitivity to sugar that causes pain when it enters the mouth, if that same person, in this situation dreams of a lollipop in their mouth, do you think it still symbolizes treasure?
Defining your personal symbol system is a lifetime job. Don't rush it, and don't believe any books on the subject. They are YOUR symbols, no one else's.
Bloodsong
A strong look at what you believe is needed to determine what different visions mean to you. Color is one way we relate to the world, but it is largely symbolic because of that. Think of where you see the colors that you see in meditation and everything else you see in meditation, in relation to where you see those things in waking life, then relate that to how you feel about those things and situations those things put you in. That will help you determine your own personal symbol system.
It does take time, and when I say that, I mean years. Not only that, but our symbols change their meaning over time in our lives, so we have to constantly redefine them. An example of what I mean by this is if a two year old dreams of a lollipop, that is a great thing, and could represent treasure of great value, now thirty years later, let's say this same person has developed sever periodontal disorders that lead to sensitivity to sugar that causes pain when it enters the mouth, if that same person, in this situation dreams of a lollipop in their mouth, do you think it still symbolizes treasure?
Defining your personal symbol system is a lifetime job. Don't rush it, and don't believe any books on the subject. They are YOUR symbols, no one else's.
Bloodsong