It became easier to understand (for me, of course) the following models:
these models myself, everything became brighter, more intuitive, sometimes obvius - compared to the mathematical formulas representing a clear idea
Is to make some sense of what are those neurons are 'thinking', inside a large net, hoping, that someday I will be able to retrain useful information from living organisms' inner state based on my current study
Generally speaking, understanding could be called some kind of visualisation...