When we open up our wisdom, then we understand the true nature of this world. And, when we gain this understanding, we can let go of anything. We will not attach to anything anymore because we understand that all is not truly existent, all is illusory! Just like your dream at night, within your dream you know that you are dreaming. So, the people who understand the nature of this world, will continue within the dream but they will not get confused by samsara.