X, II, and ∞ — Symbols of Brain Integration

In Kinesiology and Brain Gym integration, three key symbols are used: X, II, and ∞. These images represent left- and right-brain dominance and, more importantly, whole-brain integration.

• The X symbolises full brain integration, a crossing point where both hemispheres come together in harmony.

• The ∞ (infinity) symbol is the movement pattern the cross follows during the balancing process. With roots in Tibetan energy practices, it represents harmony, flow, and the kinetic dance of life.

• The II reflects the two hemispheres in parallel, highlighting balance before they integrate through crossing movements.

These symbols aren’t just abstract. They map directly into developmental movements that support coordination, focus, and learning.

The X Symbol: A Gateway to Brain Integration

Think of the X as a bridge between the hemispheres. Like a handshake, it allows both sides of the brain to communicate, creating smoother cognitive function and balanced learning. For children, this phase often shows up in everyday play: switching a spoon back to the dominant hand, painting each side of an easel with different hands, or the adorable stage of trying to jump but not quite getting both feet off the ground at once.

The Infinity Symbol (∞): Rooted in Ancient Wisdom

The ∞ symbol carries deep roots in Tibetan healing practices and has been adapted into Brain Gym for child development. It represents dynamic balance, bilateral coordination, and crossing the midline. In kinesiology, tracing the ∞ in the air reveals jerky or stressed movement patterns, which can highlight where integration is needed.

A simple balance may involve tracing the infinity symbol, writing letters or numbers that cause confusion (like reversals), and repeating the ∞ pattern until the movement flows smoothly. This supports reading, writing, and confidence in learning.

Developmental Stages & Midline Crossing

As parents and teachers, observing rather than forcing developmental milestones is key. Many simple acts—climbing, painting, crawling, riding bikes—naturally encourage midline crossing. Yet with modern shifts in children’s play, these opportunities are not as frequent as they once were.

Even in high school PE, I’ve noticed some students (ages 12–15) still struggle with basic midline movements. Returning to simple, repeatable drills—cross-crawls, high knees, skipping—can dramatically improve coordination, confidence, and whole-brain integration.

Fun Ways to Add the ∞ into Play

Here are simple, creative ways to reinforce midline crossing:

• Chalkboard Drawing – Draw large infinity loops with both hands.

• Car Tracks – Race toy cars along an ∞-shaped track

  Messy Play – Use paint, bubbles, or steam to draw ∞ patterns.

• Scarf & Ribbon Dancing – Wave ribbons in crossing patterns.

• Ball Games – Roll or kick a ball in figure-of-eight shapes.

• Sand & Water Play – Trace ∞ designs in sand or waterways.

• Skipping & Hula Hoops – Promote rhythm, crossing, and coordination.

• Yoga for Kids – Poses that twist and cross the midline.

• Storytelling with Movement – Exaggerated arm gestures that cross the body.

• Music & Instruments – Drumming, piano, or clapping games.

• Cooking – Stirring in a figure-of-eight motion.

Simple Sports for Brain Integration

• Cross-crawl running drills, high knees, bounding steps.

• Totem tennis for hand-eye coordination.

• Crawling, climbing ladders, ropes, and monkey bars.

• Swimming, bike riding, bushwalking (over scooters, which favour one side).

These activities don’t just build physical skills—they integrate brain and body, supporting learning, confidence, and emotional regulation.