July 21, 2026
The Shield and the Door
The thing I’ve been sitting with

By Jasper Tan
6 min read
The thing I've been sitting with
It's been a while since I last wrote anything. Part of that is ordinary life getting in the way. Most of it is something quieter that I've been turning over for months, and I only recently found the words for it.
I've been living with a defence mechanism. Nothing dramatic. Just the part of my mind that was built, at some point I can't even name, to keep me safe. It does its job well. The trouble is that this shield it puts up to protect me is the one standing between me and the life I keep saying I want.
This is my attempt to look at it honestly. Not to fix it in one sitting, and not to hand anyone a tidy lesson. Just to see it clearly, and to write it down before I talk myself out of it again.
What defence mechanism actually is
The idea is older than most people think. It comes from early psychology: the mind quietly protects itself from pain, just as the body flinches from heat. You don't decide to flinch. It happens to you before you get a say.
Defence mechanisms are those flinches of the mind. Some are easy to spot. Others are so smooth and so familiar that you mistake them for your own personality. Mine is the second kind, and I only see it now that I've started pulling it apart. For years, I thought I was simply being careful, or realistic, or self-aware. I'm beginning to suspect I was just well-defended.
The mind that runs ahead
The checklist before the person
Take a social event, the sort of place where I might meet someone new. Before I properly know someone, my mind has already run the meeting three or four times. It predicts how they'll respond. It guesses what they want from me, and whether they'll bother to follow up. It measures them against a set of quiet expectations they have no idea they're being held to.
Psychology has a word for part of this: intellectualising, which means dealing with the idea of a person instead of the feeling underneath, because the idea is safer. A prediction can't reject you. A real person can. So I stay with the prediction and call it insight.
Preparing for the fall
The other half is rehearsing the disappointment before it arrives. I build the safety net first, then walk out onto the wire. I tell myself I'm being sensible. What I'm actually doing is getting ready to fall, so that the fall, when it comes, won't catch me off guard.
Most of the time, the meeting goes fine, and the disaster I braced for never arrives. I feel relieved. You'd think that would settle something in me. It doesn't, and the way it fails to teach me is the strangest part of all this. I'll come back to it.
Pleading guilty first
There's a move I make so often I stopped noticing it. I name my own flaws before anyone else can.
If I tell you what's wrong with me first, then you can't use it against me. You can't accuse me of something I've already confessed. It feels like honesty, and people might even praise me for it. But underneath the honesty is a smaller, more frightened thing. It's a way of disarming you before you've done anything at all.
I'm a people-pleaser. Most people who know me might disagree. I don't blame them. The pleasing doesn't always look like pleasing. Sometimes it looks like a man calmly listing his own faults so that nobody gets the chance to list them for him. That isn't humility. It's me reaching the criticism before you do, so it stings a little less.
The abyss arrives late
If the meeting goes fine, why do I still feel like shit?
Because the low doesn't come on the day. It waits, sometimes days, sometimes weeks, then lands on an ordinary afternoon with no warning. The mind waits until my guard is down, then plays the whole thing back. What I said wrong. What I could have said better. The silence that ran too long. The awkward humour. And underneath it all, the quiet certainty that they walked away thinking I'm a loser.
I treat every normal conversation like an exam I have to pass, and I mark my own paper for days afterwards. I think I know where it comes from. I grew up being told that practice makes perfect, and I took it further than anyone ever meant me to. Somewhere along the way, ordinary human moments started to feel like tests I could fail. Slip-ups are part of being a person. I know that — but knowing has never once stopped the marking.
Maybe old habits just don't die. Or maybe I'm afraid that if I dropped the habit, I'd be left with nothing to show for myself. A person with no barrier and no imaginative exam to sit, just standing there in the open. That thought scares me more than the falling does.
From "some" to "all"
Now, the part I'm least sure about, which is exactly why it needs to be here.
Somewhere in all this, my mind made a jump. It started with a few interactions that really did feel transactional. People who wanted something, who saw me as useful, who drifted off once the use ran out. Fair enough. This probably happens to everyone. But my mind doesn't stop at "some". It went straight to "all". All connections are transactional. Nobody wants you unless there's something in it for them. The whole system runs on it, so why bother?
That jump is known as overgeneralising. Taking a handful of real moments and stretching them over the entire world. And honestly, I can't tell if that conclusion is wisdom or armour. Maybe I've seen clearly how people actually are. Or maybe the shield found a clever way to insulate and isolate — convincing me there was nothing out there worth leaving it for.
All I know is that the belief keeps me safe and keeps me alone at the same time. Anything doing both those jobs at once is worth being suspicious of.
The shield and the door are the same
The thing I want most is a real connection. Someone I can talk to without having to run the meeting three times first. Someone I don't have to brace for. But the only way to find that person is to lower the exact guard that's protecting me while I look. There's no version where I stay fully defended and also let someone in. The shield and the door are the same object. Open one, and you've dropped the other.
So I'm left with this: How much hurt is a person meant to risk in search of something that might not even exist? Lower my shield, and the fear and risk of being treated like I don't matter creeps in. Raise it back up, and the loneliness turns into frequent rumination and existential crisis any other day. Every decision I make costs something. People will tell you to take it one day at a time, to socialise when you can and rest when you can't. It sounds sensible. It has never once worked cleanly for me.
And yes, while this sounds like a no-brainer, from personal experience, it doesn't work the way you want it to be. Even if, logically, I did have a balance of managing socialising and taking mental breaks, there are discrepancies in what should feel optimal. It could be instances where the time when you were supposed to have your mental break day could stretch for two, three days, or maybe a week just to get over an ordeal. Or, as previously mentioned, when the rumination kicked in, and you thought a good night's rest would make you refreshed, another thought intrudes and causes you to fall into the mental abyss all over again. It is really tough to deal with all these, on top of managing material expectations from society as well as tone-deaf advice to just "do something" or "get over it".
No way out?
I want to be honest about how this ends: it doesn't. Not to my knowledge, or at the point in my life to be passing out wisdom. I am still learning. Still experiencing this cycle every now and then.
I can see the mechanism now — naming it, watching it work, catching it in the act. That's not the same as being free of it. Seeing the trap and walking out of it are two different things, and I'm only holding the first one.
I'm writing this for a version of me further down the road. Someone who has, I hope, found a way through, and who can read this back and remember that the struggle was real and not some weakness. Not to look back and cringe. Just to look back and nod, and say yes, that was part of it. That was part of learning how to be around other people without armour on.
I don't have a clean ending to give you. If I couldn't get past this myself, I'm not going to insult you by pretending a few paragraphs could get you past yours. Maybe yours is heavier than mine. That's more than possible, and I won't talk over it with borrowed hope.
So I'll leave it here, in the open, where I can keep an eye on it. The shield is still up. The door is still shut. But saying it plainly, out loud, has loosened something. Not much. Enough.