If you look at life and say it is good, you are correct; but if you say it is bad, you are also correct. If you look at a concept and say it is impossible, you are correct; and if you say it is possible, you are also correct.
What we see depends largely on what we look for. It has to do with the biases of our mind based on our mindsets, experiences or expectations, which in turn shape our interpretation of what we see.
If you always look out for possibilities, however difficult the situation may be, you will see possibilities. If you desire beauty, no matter how ugly a thing may be, you will be able to map beauty out of it.
What are you looking for in life? Whatever it is, that is what you are seeing, or will see. So if you want to change what you see concerning anything, change what you look for in that thing.