You might enjoy some of my writings on formalizing meaning (see here[1] and follow the links). In some way, although not always reliable, you can say that if you feel A is more meaningful than B, that is already some kind of evidence for this assertion even if perhaps unreliable in some ways.
So there isn't necessarily some huge crisis that you need to justify: in some ways reality just is (and this includes subjective reality;).
Say if you ask why do the laws of physics conserve energy locally, you can actually argue that if it were otherwise actually life would be extremely more unlikely, as that tends to increase instability in various systems (both energy divergence and going to 0 makes life unlikely); but still I'm almost certain you could conceive of forms of life in non-energy-conservative systems (something like Conway's Game of Life, but maybe with more advance rules if you prefer). So while it makes sense that the physics in our universe is approximately locally conservative (maybe not exactly in GR?), in totality it's just kind of a brute fact, an experimental observation. Our theories help us devise say better experiments to test e. conservation, and in a way map out the landscape of consistent physical laws. But they don't tell you which realization of consistent or admissible laws you'll find yourself in.
Other way to phrase it, what you feel is in a way real. So if you feel in some fundamental way better reading A than B, then that simply reflects a property of reality and needs no further explanation. The only problem is that in some cases our judgement can be distorted, like by substances or maybe overwhelming blinding desires (that fail to reflect fundamental experiences) or by limitations of our memory, etc.. But if we assume this isn't the case (i.e. some pathological reason for your preference), then your feeling is valid irrespective of a wordy justification. I think some things really are subjective, but also believe in a fundamental and very complex way subjectivity is actually as objective as anything else. I think the fact that one experience is actually (with some important caveats and necessary context) better than another in what might be called essentially an objective sense, is one of the most counterintuitive things we will come to accept about the human mind. We tend to mistaken complexity (it's very complex to compare experiences) to impossibility (it's impossible to judge experiences objectively).
I believe in principle there might be the equivalent Laws of Physics (say Newtonian mechanics) for the human mind, but I suspect we're still very far from it, because it might require analyzing the network of n=100 trillion synapses in our brain. I think one day we might get there, but that would probably require something like a computational effort maybe at least several times n, or even on the order of n², or some other poly(n), and also poly(n) memory. If we think of one of the major objectives of physical law is to make predictions, and explain behavior, and say to aid in engineering and designing structures, I think one of the main objective of the laws of the mind would be say to predict whether say an experience or mental state is good or not, and explain why it is so; and then perhaps allow improving a little the design of things so that we have better experiences, that is, a better life. I guess this is already what say psychology, various spiritual traditions, philosophy and arts try to achieve (and I think gets already in many cases pretty close, maybe increasingly closer, to the still inaccessible extremely complicated reality of the human mind and brain).
Regardless, we often have to do our best with what we have today, which is our best-effort subjective judgement, aided by language various human disciplines :)
[1] https://old.reddit.com/r/slatestarcodex/comments/1n6j1jg/pur...