If you have read any psychology, you may already own the word this page is about. Self-actualisation was Abraham Maslow's name for becoming fully what you are, and he placed it at the very top of human striving. The claim here is simple: what he charted at the summit of his scale is what the older traditions mapped centuries earlier from the other side of the mountain. You don't have to trade the words you trust for anyone else's, only see that you have all been describing one view.
Maslow's ladder
Maslow drew human needs as a ladder, usually pictured as a pyramid. At the base are the things the body cannot do without: food, water, rest, safety. Above them sit the needs that matter once the lower ones are met: belonging and love, then esteem, the respect of others and of yourself. Meet those, Maslow argued, and a person is free to climb toward the top: to become fully themselves.
Read the ladder from the outside in rather than the bottom up, and it is the same architecture as the Layered Self: the outer, more urgent layers have to be steady enough that attention can turn inward. The hungry and the frightened cannot easily meditate; first the floor must hold, enough to stand on.
Becoming who you are
At the top of the ladder is self-actualisation: the drive to become the particular person you have it in you to be. Maslow reached it by an unusual route. Where much of early psychology studied the sick and reasoned backward toward health, he studied people who were visibly flourishing and asked what they shared. Among other things: a clearer view of reality, an ease with themselves and others, and a freshness of appreciation, the ability to feel the hundredth sunrise as keenly as the first.
That last detail matters, because it is the exact opposite of the hedonic treadmill, the mind's habit of grading everything against what it has grown used to. The self-actualising person has, in some measure, stepped off the belt. Self-actualisation is the modern name this site gives the summit, set beside Samadhi, Eudaimonia, and Nirvana in the core equation: the youngest word for the oldest destination.
The view from the top: peak experiences
Maslow had a name, too, for the moments when the summit is not a distant goal but a present fact. He called them peak experiences: episodes of clarity and absorption, of awe, the boundary between self and world going quiet, that can leave a person changed. They arrive unbidden, in music or nature or work that takes all of you, and cannot be manufactured, only made more likely.
Their everyday cousin is flow, Mihály Csíkszentmihályi's name for absorption in a task, the self and its chatter falling away. Flow is the lived face of concentration, treated as a limb on Dharana. The peak experience is its rarer, deeper relative, and it sits close to Samadhi. One psyche, two vocabularies.
Past the summit: self-transcendence
Late in his life, Maslow revised his own most famous idea. The true peak, he decided, was not self-actualisation after all. Above it he placed self-transcendence: moving past the separate self toward other people, a cause, the whole one is part of. Becoming fully yourself, it turned out, was not the end. It was the doorway to forgetting yourself.
Maslow was candid about where he had first seen this described. He found it in the very yogic and Buddhist contemplatives a modern reader is so often taught to be wary of. He did not take on their metaphysics, and neither does this site. But he recognised their summit when his own research led him to its foot, and said so plainly.
The same summit, another language
Here is the difference, named plainly rather than smoothed over. Psychology mostly describes and measures. It studied the flourishing, charted the ladder, named the peak, and gave the whole thing testable words. What it less often does is walk you up the mountain, day after day, for years. That walking is what the eight limbs are for.
The summit itself is taken up on Samadhi; the full case that these words point to one view is set out on The Convergence. The short version is the one Maslow reached from the outside and the contemplatives from within: the fullest version of a human life is not one more rung to be banked. It is a way of seeing, available now or not at all. The path is the goal.