TEX's mouth and TEX's stomach

TEX's programming facilities come in two forms --- there are TEX's <#53#>macros<#53#> which are expanded in its mouth, and some additional <#54#>assignment<#54#> operations like 4 which take place in the stomach. TEX can often spring surprises on you as exactly what gets evaluated where. For example, in L^ATEX I can put down a label by saying 5. Then I can refer back to that label by saying 6, which produces Section~#Here#56>. Unfortunately, 7 does <#57#>not<#57#> expand out to <#469#>#Here#58><#469#>! Instead, it expands out to:

verbatim65#

This means that I can't say

verbatim66#

and hope that this will expand out to Hello. Instead I get an error message. Which is rather a pity, as TEX's mouth is quite a powerful programming language (as powerful as a Turing Machine in fact).