The Law of Assumption states that whatever you assume to be true—and persist in assuming—will eventually harden into fact. Not what you wish for, hope for, or work toward, but what you assume as already being the case.
An assumption is not a belief you're trying to convince yourself of. It's deeper than that. It's the background certainty from which you operate. You assume the floor will hold you when you step. You assume the sun will rise tomorrow. These assumptions require no effort to maintain because they feel like simple facts.
The Law of Assumption teaches that you can deliberately adopt new assumptions about yourself, your life, and your circumstances—and that reality will rearrange itself to match. The assumption comes first; the evidence follows.
Neville Goddard's Perspective
Neville made the Law of Assumption the cornerstone of his teaching:
"Assume the feeling of your wish fulfilled and observe the route that your attention follows."
For Neville, the feeling was everything. An assumption without feeling is just a thought; an assumption with feeling is a creative act. He taught that you must psychologically enter the state of having your desire NOW—not tomorrow, not when circumstances change, but now.
"An assumption, though false, if persisted in, will harden into fact."
This statement reveals the radical nature of the teaching. Even if your assumption contradicts all current evidence, persistence will make it real. This works both ways—negative assumptions are just as creative as positive ones.
James Allen's Perspective
Allen expressed the same principle through the metaphor of the garden:
"Circumstance does not make the man; it reveals him to himself."
Your circumstances are not happening to you—they are the outgrowth of your innermost assumptions about yourself and life. Change the assumptions, and the circumstances must eventually change to match.
The Difference Between Assumption and Affirmation
Many people confuse assumptions with affirmations. They are not the same.
An affirmation is something you say to yourself, often while feeling the opposite is true. "I am wealthy," you repeat, while feeling poor. This creates internal conflict.
An assumption is something you are. It requires no verbal repetition because it's your actual state. The person who truly assumes wealth doesn't need to affirm it—they simply think, feel, and act from a place of assumed abundance.
The goal is not to repeat words but to actually shift your inner state—to assume the feeling of the wish fulfilled until that assumption becomes your natural dwelling place.
Practical Application
Daily Exercise: Assumption Testing
Time required: 5-10 minutes, multiple times throughout the day
- Set 3-4 reminders on your phone throughout the day.
- At each reminder, pause and ask: "What am I assuming right now about myself and my life?"
- Notice the background assumptions running beneath your conscious thoughts.
- Identify one limiting assumption you've caught yourself in.
- Flip it: What would you be assuming instead if your desire were already fulfilled?
- Dwell in the new assumption for 60-90 seconds. Feel it as true.
- Return to your day from this new assumption.
The Test of True Assumption
How do you know if you've truly assumed your desire? Here are the signs:
- Naturalness. It feels normal, not forced or exciting.
- Decreased urgency. You're no longer desperate for it because you feel you have it.
- Changed inner conversation. Your self-talk reflects the new state.
- Different reactions. Things that would have bothered your old self don't affect you the same way.
"To reach a state, you must assume that you are already there. The assumption, though denied by the senses, if persisted in will harden into fact." — Neville Goddard