Something that holds you back.

Constraining influence refers to a limiting or restrictive impact that inhibits one's choices, actions, or decisions. It can come from external factors such as rules, regulations, or social norms, as well as internal factors like personal beliefs or fears.

It is constraining or compelling,force or influence.It denotes urgency as of affairs or business.

"lateral" means "side". Thus lateral limits are those constraining something to either side.

Compelling, in a physical sense; powerful., Having the power to compel conviction or move the will; constraining; conclusive; forcible; powerful; not easily reasisted.