Duality means that the way we percieve is discordant to reality, not the same as what is in fact the case. The way it appears is out of harmony with the way it actually exists.
Language
Words of Wisdom
"You don't need to obsess over the attainment of future realizations. As long as you act in the present with as much understanding as you possibly can, you'll realize everlasting peace in no time at all."