This pair of stars are plotted based on the time of birth. Its effects are not as strong as the above 4 aggressive stars, but it also adds an dimension to the chart.
地空 : This star has the name of Inner Emptiness.
地劫 : This star has the name of External Emptiness.
I will bring you through what the 2 stars mean:
● 地空 : This star if present in the sector gives a feel of emptiness. This emptiness is inherent, branches from the inner self. It usually makes one more ‘abstract’, the person with a 空, is quite good in maths,physics, philosophy. But it can make the person more detached, which makes the person stay in a world of his own. 空 makes a person more directed towards religion, philosophy, unconventional thoughts/ideas. A word of caution, if 空 exists in a sector, and it does not have the above character, it is likely the sector will be full of emptiness,eg in child sector, there will be emptiness which means no children..
● 地劫 : This star if present in the sector gives a feel of emptiness, but this emptiness does not branch from the inner self, but tend to be due to emptiness coming from the environment. The person with 劫 is also more directed towards religion, philosophy, unconventional thoughts like fengshui, fortune telling, etc, but these do not come naturally to the person, but the person tend to be affected by ‘unconvention’ in the environment making him direct towards such ideas. ( thus the name External Emptiness ).In the same way as 空, 劫 can cause emptiness in the sector.
● If 空 is found in the 财( wealth )sector: the analysis is as such
Having 空 in the wealth sector can be quite bad. The wealth sector is how we earn money/spend money. 空 is equal to being ‘unconventional’, unconventional ideas. Thus in wealth sector, if the person’s job has nothing to do with ‘unconvention’, like earning money through religion, fenghui master, philosophy, etc, 空 will only create emptiness in the sector, thus making one not being able to earn money. The above is a good example of how we can make use of our 紫微 chart to decide on how we can earn money.
● If 劫is in the 官 ( work ) sector: the analysis is as such
Work sector determines the the work we are doing, how is our work environment. If 劫 is there, it can mean there is a emptiness in the workplace or ‘unconventional’ ideas in environment. The workplace should have ‘unconventional’/philosophy/religion ideas, maybe like abstract art, temple, church. If there is no ‘unconvention’ in the workplace, the person’s working life will be full of emptiness in the environment, and may result in the person unable to work at all.
地空 & 地劫 has slightly different brightness in different sector, but for our purpose, we can assume same brightness in the sectors.