[Grammar] it's these?

[Oceanlike]

I read these words in an article: Perhaps it's these moments of patience that reflect a sense of empathy........

Please help me to understand how 'it's' and 'these' can go together since the former seems to be 'singular' and the latter is 'plural'.

Thank you! :-D

 

[Raymott]

It's normal English.
"It's those fish that smell"; "It's the Simpsons"; It's all these bills that are depressing me."
These are answers to "What is that smell?"; "Who is it?"; "What's depressing you?" These can have a singular or plural answer.

 

[Matthew Wai]

Is 'these moments' considered a single unit, so 'it's' is used before it?

 

[Raymott]

Is 'these moments' considered a single unit, so 'it's' is used before it?

No, that can't be the reason because I've just explained that the complement to "It's" can be either single or plural. Therefore, there is no need to look for any further justification.