Oil -- typically olive oil -- symbolizes the good that comes from celestial love. Celestial love is love of the Lord, the highest and purest love we can have. The good of celestial love is the desire to be good springing from celestial love: Wanting to do the Lord's will because you love Him. That's not a state many reach, even in heaven, but it's a beautiful goal. This representation makes sense based on the idea that the sun -- the source of all natural light and heat, and thus all natural life -- represents the Lord, the source of all spiritual light, heat and life. Burning oil was the most pure fire available in Biblical times, thus the closest representation of the sun people could create.

3107. 'Ten [shekels] of gold in weight' means the full amount involved in the introduction. This is clear from the meaning of 'ten', like a hundred, as a complete state, dealt with in 1988, 2636, from the meaning of 'gold' which here is a type of currency whose weight is used to indicate value, and from the meaning of 'weight' as the state of something as regards good, dealt with above in 3104. From this it is evident that 'ten [shekels] of gold in weight' means a complete state of what is being valued as regards good. The fact that the full amount involved in the introduction is meant is clear from the details in this chapter which deals with the introduction or betrothing.