We have the Gathas to understand its meaning it is clear that we have to think of Asha, Haurvatat ect as proper philosophical concepts in the Deleuzian sense. Meaning that each concept connects to other concepts.
Science as a sacred process
For example, Ahura is a concept, one can then ask, what is the Asha of Ahura? From that, we get the process of understanding how the Universe works. A concept we today more or less associates with Science and the scientific mindset. Although that might not be entirely accurate, due to the history of ideas up to this point in time. Many scientists today still has Abrahamitic and Platonistic assumptions still lingering on. That being said, Mazdayasna as a religion and a way of thinking is not in any way hostile to the enterprise of science, quite the opposite due to the reasons stated above. The impulse is not so much to subjugate to or resist Ahura, but to engage with Ahura.
Acting in harmony with yourself
The same way, Mazda is a concept, one can ask, what is Asha of Mazda? Which is a pure ethical notion. Of thinking in alignment with Asha. For the purpose of speaking in alignment with Asha. For the purpose of acting in alignment with Asha. In contrast to how the 21-century in Western contexts often understands spirituality. It’s then not enough to just think Asha. Asha is not just a conscious experience. That would be to my understanding to undermine the deeper meaning of Asha. Instead, although the focus is on thoughts, words and actions. We ought to evalutate the effects in reverse order, of actions, words and thoughts. This might also be the reason why Mazdayazna has never had Monasteries as far as I am aware of.
Eternal now as ethical ideal
This brings me to trying to get a more clear understanding of Haurvatat, and it’s meaning as a concept. The way I have come to understand it has similarities how Zen teachers discusses Enlightenment. The point is that each moment (what we can understand as thoughts, words and actions) influence the next moment. And that in each moment Enlightenment is possible. So that we have a flow of moments. And as long and as far as they in each moment is in alignment with Asha. We call that sequence of moments Haurvatat.