What it means is this: most of the time, people rely on their judgement, which means they weigh their pros and cons and make their decisions. for example, you use you judgement on who you should befriend, if somebody is worthy of being your friend or not and if you enjoy their company. But, the only time you cannot use your judgement, is if your imagination is out of focus, which means you aren't seeing the facts, they're out of focus. Like, you don't know not to befriend somebody because of a history they have of doing bad things. That is why we sometimes need to rely on other peoples judgements, which are NOT out of focus. Like our parents/spouses... and so on!

__________________
Yahoo! Answers