Yes, gets rather addictive, doesn't it? And yes again, the smaller the posts the easier it is to follow the argument, not get lost running all over.
Ok, for the sake of argument, we will accept your definitions. I'm not sure we can define a knife 'edge' demarcation between the separate definitions of what is taking place in a single mind, since we are describing a process not an object, but that isn't really a worry until it comes up.
You may not cut yourself, but you may fall over.
Definitions to date:
Tabula rasa: a mind without sensations or concepts
Sensorious mind: a mind with sensations but no concepts
Conceiving mind: a mind with both sensations and concepts
The knife edge demarcations come from your explanations:
The mental process was identifying the symbol as representing the concrete experience. The ’tabula rasa’ is at the point of birth, maybe a little earlier. You, as Robbins, misunderstand here. Understanding the first concept gave her the ability to associate other experiences with concepts. The world ceased to be a chaotic flow and became understandable. -LogicWings post 1091
That is also carved upon the blank slate. So far we have pain, necessity (of breathing) and pleasure (for reward of right action). By the time your first hour has passed your meager brain is overflowing with the wonder of it all, and you fall fast asleep so your burgeoning mind can try to make 'sense' of it all. It will take 500 days and ten times as many hours of experience and sleep before you will begin to accumulate enough experience to approach forming a concept. -LogicWings post 1146
I formed the definitions based on your explanation of the process of going from a tabula rasa mind to a conceiving mind. It seems to me that you are asserting a stage (sensations, but no concepts) between tabula rasa and the conceiving mind. I want to give it a name and a definition.