diff --git a/src/dashboard/routes/system.py b/src/dashboard/routes/system.py
index 7b98a7fb..7a6df040 100644
--- a/src/dashboard/routes/system.py
+++ b/src/dashboard/routes/system.py
@@ -8,6 +8,7 @@ from fastapi.responses import HTMLResponse, JSONResponse
 
 from config import settings
 from dashboard.templating import templates
+from timmy.memory_system import get_memory_system
 
 logger = logging.getLogger(__name__)
 
@@ -190,3 +191,26 @@ async def api_swarm_status():
             "message": "Swarm monitoring endpoint",
         }
     )
+
+@router.get("/soul", response_class=HTMLResponse)
+async def soul_page(request: Request):
+    """Render the soul management page."""
+    memory_system = get_memory_system()
+    soul_content = memory_system.read_soul()
+    return templates.TemplateResponse(
+        request,
+        "soul.html",
+        {"soul_content": soul_content}
+    )
+
+
+@router.post("/soul/update", response_class=JSONResponse)
+async def update_soul(request: Request):
+    """Update the soul.md content."""
+    form = await request.form()
+    content = form.get("content", "")
+    memory_system = get_memory_system()
+    success = memory_system.write_soul(content)
+    if not success:
+        return JSONResponse({"error": "Failed to update soul"}, status_code=500)
+    return {"status": "ok", "message": "Soul updated successfully"}
diff --git a/src/dashboard/templates/soul.html b/src/dashboard/templates/soul.html
new file mode 100644
index 00000000..3c3205b7
--- /dev/null
+++ b/src/dashboard/templates/soul.html
@@ -0,0 +1,45 @@
+
+{% extends "base.html" %}
+
+{% block title %}Soul Management - Timmy Dashboard{% endblock %}
+
+{% block content %}
+<div class="container py-4">
+  <div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+      <h1 class="h3 mb-0">Soul Management</h1>
+      <p class="text-muted">Define the core identity, values, and personality of your agent.</p>
+    </div>
+    <a href="/" class="btn btn-outline-secondary btn-sm">Back to Dashboard</a>
+  </div>
+
+  <div class="card shadow-sm">
+    <div class="card-header bg-white py-3">
+      <h5 class="card-title mb-0">Core Identity (soul.md)</h5>
+    </div>
+    <div class="card-body">
+      <form hx-post="/system/soul/update" hx-swap="none" hx-on::after-request="if(event.detail.successful) alert('Soul updated successfully!')">
+        <div class="mb-3">
+          <label for="soulContent" class="form-label">Soul Content (Markdown)</label>
+          <textarea class="form-control font-monospace" id="soulContent" name="content" rows="20" placeholder="# Agent Identity..." style="font-size: 0.9rem;">{{ soul_content }}</textarea>
+          <div class="form-text">This content is injected into the agent's system prompt to define its core persona.</div>
+        </div>
+        <div class="d-flex justify-content-end">
+          <button type="submit" class="btn btn-primary">Save Changes</button>
+        </div>
+      </form>
+    </div>
+  </div>
+
+  <div class="mt-4">
+    <div class="alert alert-info">
+      <h6 class="alert-heading">What is the Soul?</h6>
+      <p class="mb-0 small">
+        The Soul (<code>soul.md</code>) is the most fundamental layer of the agent's memory. 
+        Unlike episodic memories or facts, the Soul defines <strong>who</strong> the agent is, its primary mission, 
+        and its ethical boundaries. It is always prioritized in the agent's thinking process.
+      </p>
+    </div>
+  </div>
+</div>
+{% endblock %}
diff --git a/src/timmy/memory_system.py b/src/timmy/memory_system.py
index c3d2d14c..c9dbb45b 100644
--- a/src/timmy/memory_system.py
+++ b/src/timmy/memory_system.py
@@ -572,6 +572,17 @@ def get_memory_context(query: str, max_tokens: int = 2000, **filters) -> str:
     if not context_parts:
         return ""
 
+    def write_soul(self, content: str) -> bool:
+        """Write content to soul.md — Timmy's core identity."""
+        try:
+            SOUL_PATH.parent.mkdir(parents=True, exist_ok=True)
+            SOUL_PATH.write_text(content)
+            logger.info("MemorySystem: Updated soul.md")
+            return True
+        except OSError as exc:
+            logger.error("Failed to write soul.md: %s", exc)
+            return False
+
     return "Relevant context from memory:\n" + "\n\n".join(context_parts)