Albedo and Emission

Albedo

Albedo is the 'diffuse' color of the surface. In the case of this shader it is the base color plus any other effects that aren't marked as emissive.

Albedo is fully effected by light conditions in the environment and by additive lights. It's only used in lit lighting modes.

Emission

'Emission' and 'Emissive' refers to parts of the material that are not effected by lighting conditions and thus appear to always be 'emitting' light.

Toggling lights on off shows which parts are emissive and which are albedo. The emissive parts are the ones that are glowing without ligths. The rest is albedo.