In general we perceive things based on our beliefs. Our beliefs are formed by our surroundings and education. Our beliefs decide how to 'see' things. We are biased in our vision due to our attachments and aversions to people, things and situations. Bigger problem arises when our beliefs begin to limit us. For example, I am happy when I am successful; I am angry because of what my boss said. On the other hand, Clarity is clear perception. Clarity is our innate ability to 'see' things the way they are instead of from our mind's eyes or emotional perception. 

In this game, 'clarity' is used as a tool to erase karmas.