Again, to compare,, to the Consciousness-Only school, reality is a product of our “storehouse consciousness,” accumulated from the karma of our experiences in each life.
Meanwhile, to Hua-Yan, various worlds of existence are the fabrications of multiple minds, which are in turn the product of the One True Mind (Buddha Mind).
But to Tiantai, the everyday world is nothing more than the ordinary world in which we live. So there is no need to search for another realm of existence (nirvana); enlightenment is already here.
The Three Truths are thus really just three aspects of one greater truth, which is that the world is both substantial and empty at the same time, and the Mahayana path is to embrace both of these dimensions at the same time.