3 ideas
Yoga must be tailored to the individual's current condition — age, body, health, breath capacity, and life situation — rather than the person being forced to conform to a fixed posture or sequence. The correct practice is the one that meets a specific student where they are now, which means the same pose may be modified completely for different people or for the same person over time.
In each posture the breath initiates and governs the movement rather than the body moving and breath following along: you inhale or exhale first, and the spine and limbs respond to that breath. Linking specific movements to inhalation versus exhalation transforms physical postures into a tool for directing attention and steadying the mind.
Avidya — misperception or false understanding of reality — is the underlying source from which the other obstacles (ego, attachment, aversion, fear) grow, like a field in which weeds sprout. Reducing suffering is therefore less about acquiring new states and more about progressively clearing this misperception so we see things as they actually are.