Production and Destruction Cycles of Elements

This is pretty good picture of the Feng Shui Elements showing the Productive and Destructive nature of the 5 elements.

The main (day) element of your life can be obtain from your BaZi. So if you are 'Jin' which is Metal, it will be good to have 'Tu' or Earth people around that produces your element. However if you are too strong or you have too many of your own element around that is hindering your progress, you will need destructive element like 'Mu' or Wood to simmer your element down. Simple analogy but there is definitely more then what I have to said.