We've a huge container of ideas in shape of our mind.
charity begins at home
try to elaborate your own perceptions first.
practice a paper work on them... make them easier by attaching examples and more meanings...
this is what poets and other scholars do.....

try to be a little philosophical in ur pursuit and take a cognitive notice of demonstrable as well as abstract objects around you.

watch out if you left any stone unturned while giving details to your precise ideas.

later on proceed to the ideas of others , found in books,magazines,npapers,t.v,forums,blogs and the like other sources...

you will feel easy to deal with them thereafter.

if you are only css centered soul... let me refer you to a book for idea expansion that may help you a gud deal in the context of this particular exam

this is "idea expansion " by manzor mirza...

give it a try..........

regards