Nature of True Cognition What is the nature of a true cognition in Buddhism, or what Buddhism considers as truth? Is it the same as what people consider a logical conclusion made with an empirical process? I feel it cannot be exactly that as various truths exist in Buddhism that aren't easily verifiable with mere deduction.

In addition, how important is truthful cognition/perception in Buddhism? How far can you get practicing things like mindfulness, compassion, etc. without being capable of ascertaining things as 'true' for oneself. 

Finally, and I guess I should've asked this before, what effects/qualities does true information have in Buddhism? Is it timeless? Universal? Beyond doubt? 

So to clarify, these three questions are respectively asking the nature, the importance, and the consequences of truth in Buddhism.
The true cognition in Buddhism is tautologically defined as directly knowing and seeing things as they are.

The explanation of this is threefold. 

First, this means a mode of cognition without a contradiction, not prone to contradicting evidence.

Second, it means a mode of cognition which, when taken as a  basis for decision-making and action, does not lead to conflict or suffering, but to peace.

Third, it is cognition that is an extension of the ontological nature beyond words, beyond generalizations and concepts, beyond discrete representation.

This last point means, this cognition is so featureless that it may seem like there's none, and yet it is actually a lot more accurate than our naive crude models we take for the truth.