What does "add a lot of layers and abstractions that make sense in one context" mean? Is that like "entities and/or actions placed or performed in a certain man

What does "add a lot of layers and abstractions that make sense in one context" mean? Is that like "entities and/or actions placed or performed in a certain manner for a particular purpose, or to carry out a certain task"? Everything in a high-level programming language is an "abstraction". And anything outside the grammar of the language is a convention.