Time.
Just like Claire pointed out, it was a word that… No, it was a meaning I summoned with my lips quite often, constantly bouncing it around my lips given just how many matters I had to deal with and how little time I had to do it.
In the end, time was just another resource that all humans had in limited supply. And it was my task as a person to ensure my time investment was directed at the correct topics.
So, I assigned the late morning to be the time for dinner, and then the next two hours were directed at various experiments that taught me a bit more about both my current cultivation stages.
Now, however, the short time I assigned for a break was getting consumed by an important phone call Claire ended up pushing on me when she learned I had to make the call in question rather than just sitting down and cuddling with her for the entirety of the break.