This is part of a series about the four planes of development. Each plane corresponds to a significant period of human development, running from birth through early adulthood. 

Unlike many of our mammalian cousins, newborn humans arrive essentially helpless -- half blind, completely reliant on others for food, no ability to escape danger. Some even consider the first few months of life more an extension of the pre-natal journey (a fourth trimester). 

Still, in the grand scheme of things, that early period of extreme helplessness is brief. Within months, baby has gone from an eating and sleeping machine with few communication tools to a curious toddler navigating the world.

A few years later, the toddler is a child running, playing, speaking, reading, doing math, telling jokes, and otherwise well on her way to becoming a regular, old human being. 

A Time Like No Other

Early human development may seem a snail's pace when compared to horses, who all but walk out of the womb, but don't let looks deceive you. While gross and fine motor skills may be crude (or non-existent) at first, there is a raging fire of growth and development inside that most complex of machines -- the human brain.

Consider - Research has shown that half of a person's intelligence potential is developed by age four and that the brain reaches half its mature weight by about six months and 90 percent of its final weight by age eight.

The First Plane: Birth to Age 6

While humans never stop developing, what happens in those very early years is unique, remarkable, and greatly responsible for shaping a person's entire life. The scientist and educational pioneer Maria Montessori defined this period as the first plane.  

Montessori work stems from an era when our understanding about how the brain works reached new heights (both Freud and Jung were contemporaries). A physician by training, Montessori applied her skills of observation and diagnosis to her studies of childhood development and learning. From this work, she was able to define and describe the qualities four distinct planes (or phases) of human development. 

The Absorbent Mind

During the first plane (birth to age six), the mind is like a sponge, greedily soaking up information and experiences primarily. Montessori describes the mind of a young child as "absorbent" with good reason.

Just how absorbent is the mind? Consider the gulf between what a one week old and a six year old knows and can do.

We can make sense of this epic journey if we think of it as a move from unconscious to conscious thought.

In the early years, the child absorbs information fairly unconsciously, primarily through the senses. At around age three, the child enters the second half of the plane, becoming increasingly susceptible to direct adult influence and instruction. Still, the two halves of the journey remain bound by the supreme absorbency of the mind.

Adult Mindfulness

Because first plane children are so absorbent and ready to learn, adult interactions require a high-level of mindfulness. What an adult says or does will have a lasting, perhaps permanent, effect on the child.

That said, the human brain is also incredibly malleable and never stops growing and developing. In other words - "Parents and teachers, you WILL make mistakes. The child WILL survive. Relax!"

The key to success with a first plane child is to follow the child's lead. If you provide the child enrichment, let her naturally curiosity drive the learning, and model with regularity (not perfection) the characteristics and behaviors you hope to foster, you will succeed. The child will learn and explore with a ferocity we adults only wish we could replicate.

Babies -- we could learn a lot from them.