I don't suggest that you internal spam link your pillar content.
It has to be in context.
Ultimately, doing so has to add value to the life of your reader.
That's the bottom line.
A lot of people make this rookie mistake.
They know well enough not to do external backlinks spamming, but they can't help themselves when it comes to internal linking.
They still end up screwing themselves because when Google bot does a link map of your site, it's going to look really weird coz it seems that all these pages linking to a handful of internal pages.
Something is wrong with this picture.
Do you see how this works?
So, the more natural your linking pattern is, the better.
You can still get away with that approach, but you have to also link to other sites.
What works for me is to do a lot of external linking to non-competitor .edu and .gov, high-authority external sites.
Now, you may be asking: "What's the point of that?"
Well, first, they have to add actual value so I'm using them as citations to the claims I'm making on an article.
That's the first step because when people can see that they can verify what I'm talking about, it adds to the credibility of my sites.
Since many of these websites are government-run or university-run pages, they're obviously not competitors.
But I'm packing a lot of their credibility and legitimacy by linking to them.
The next thing that I do is make sure that I link responsibly.
What I mean by that is that I focus on key claims.
I don't just link every other word or based on a certain percentage.
The key is to create a smooth experience for the reader where they feel that their trust in your brand increased after reading your article.
That's how you play the game.
Or, at least that's how I choose to play.