The Spleen centre in relationships defined vs undefined
- Lucy Ellis
- Sep 16
- 3 min read
When it comes to Human Design, the Spleen Centre is one of the most fascinating, and misunderstood, places in the chart. It holds our sense of health, safety, survival, intuition, and risk-taking.
Yesterday on the podcast, Bec (my Human Design bestie) and I dove into all things Spleen. She has a defined Spleen, while mine is undefined, so we brought both perspectives to the table, and it opened up some big insights about how this centre plays out in real life and relationships.
The Defined Spleen: Consistent but Easy to Overlook
If you have a defined Spleen, your relationship to health and safety is consistent. You have a reliable way of relating to your intuition, and your body tends to give you signals in the same way each time.
But because it’s steady, it can also be easy to overlook. You might not always pick up on the more subtle shifts in your body or your environment. In relationships, this consistency can be a real gift, you bring stability and calm. But you may need to practice being in tune with your bodies signals.
The Undefined Spleen: Hyper-Aware + Deeply Sensitive
If you have an undefined Spleen, you’re highly attuned to health, safety, and fear, often more connected to it than those around you. You can pick up on other people’s wellbeing, their fears, even the “stickiness” of their attachments.
This makes you incredibly intuitive and empathetic, but it also comes with challenges. You might:
Hold on to people or situations longer than is healthy, because letting go feels unsafe.
Take on other people’s fears as if they’re your own.
Blur the line between your body’s intuition and someone else’s energy.
In relationships, this sensitivity can be a superpower, you can read what’s really going on beneath the surface. But it also means you need to consciously separate what’s yours from what belongs to others.
In Relationship Together
Here’s where it gets juicy.
A defined Spleen partner brings stability, consistency, and a steady sense of safety.
An undefined Spleen partner brings heightened awareness, deep intuition, and the ability to sense energy that can’t be put into words.
When these two come together, it can be magnetic. The defined offers grounding. The undefined reflects what isn’t being spoken. But without awareness, the defined may dismiss subtle cues, and the undefined may over-identify with what isn’t theirs.
Awareness is what turns the dynamic into medicine, instead of mess.
Why This Matters
You can’t fake energy. You can say the right words, but your partner will always feel your state.
The Spleen is about trusting what the body already knows, whether that’s safety, risk, or intuition.
When you understand whether your Spleen is defined or undefined, you can stop making it wrong. You can work with it instead of against it. And you can deepen both your relationship with yourself and with your partner.
Listen to the Full Conversation
This blog just scratches the surface. Bec and I went deep on:
How intuition works differently in defined vs. undefined Spleens
Why you can’t fake energy (and how your partner feels it)
Risk-taking, safety, and how to actually check in with your body
Why undefined Spleens are more inclined to hold on too long, and what to do about it
As an added extra. if you feel like your undefined spleen could do with a rinse out of everybody else's energy and return back to your own health and wellbeing then download this hypnosis audio that will support your health and wellbeing.
Comments