Foundations of Yoga

The word yoga comes from the Sanskrit root yuj, which means to yoke, to join, or to unite. This root meaning tells us directly what yoga is about: the union of the individual self with a larger reality. Different schools of yoga interpret what is being united differently — the individual consciousness with universal consciousness, the scattered mind with a focused one, the body with the breath, or the practitioner with the present moment. All of these are valid expressions of the same underlying principle.

What Yoga Is Not

Before defining what yoga is, it helps to clarify what it is not. Yoga is not stretching, though increased flexibility is often a byproduct. It is not exercise, though physical practice builds strength and health. It is not a religion, though it emerged within a broadly Hindu philosophical context and shares concepts with Buddhism and Jainism. Many sincere practitioners of yoga hold Christian, Muslim, Jewish, atheist, and agnostic worldviews, and find nothing in yoga that conflicts with their beliefs.

Yoga is a systematic science of self-inquiry and self-regulation. It offers practical tools for working with the body, breath, and mind, and a philosophical framework for understanding what you are working toward.

The Four Paths

Classical yoga philosophy recognises four major paths, each suited to different temperaments:

• Karma Yoga: The path of action. Acting without attachment to results, offering one’s actions as service.
• Bhakti Yoga: The path of devotion. Channelling emotion toward the divine through prayer, worship, chanting, and surrender.
• Jnana Yoga: The path of knowledge. Discriminating between the real and unreal, and inquiring into the nature of the self.
• Raja Yoga: The path of mental control, systematised by Patanjali in the Yoga Sutras as the eight-limbed path (Ashtanga Yoga).

Hatha Yoga, which is what most modern practitioners encounter first, is traditionally understood as a preparatory practice that makes the body and nervous system capable of sustaining higher states of meditation. It belongs most directly to the Raja Yoga lineage but draws from all four paths.

The Five Koshas

Yoga philosophy describes the human being as existing across five layers or sheaths called koshas. Understanding these layers explains why yoga works on so many levels simultaneously:

• Annamaya Kosha — the physical body, sustained by food.
• Pranamaya Kosha — the energy body, sustained by breath and prana.
• Manomaya Kosha — the mental/emotional body, the seat of thoughts and feelings.
• Vijnanamaya Kosha — the intellect and discernment, the faculty that distinguishes between what is real and what is not.
• Anandamaya Kosha — the bliss body, the deepest layer of individual existence before the state of pure awareness.

Yoga practices operate across all five layers. Asana works primarily on the physical body. Pranayama works on the energy body. Meditation works on the mental and intellectual layers. Understanding the Kosha model helps practitioners understand why their practice has effects that go far beyond the physical.

The Three Gunas

Yoga philosophy describes all of manifest reality as consisting of three qualities called gunas: Tamas (heaviness, inertia, darkness), Rajas (activity, passion, restlessness), and Sattva (clarity, balance, harmony). Every object, action, food, and state of mind can be understood in terms of which guna predominates at any moment.

The aim of yoga is not to eliminate Tamas and Rajas — these are necessary for rest and action respectively — but to increase Sattva so that all activities are conducted with clarity and equanimity. A sattvic mind is capable of meditation; a tamasic or rajasic mind is not.

Yoga as a Way of Living

The most important foundational principle of yoga is this: yoga is not something you do on a mat for an hour. It is a way of relating to all experience — to food, sleep, work, relationships, and the contents of your own mind. The practices done on the mat are tools for developing the capacity to live in this way. At Medhya Laya, this understanding shapes everything — from the daily schedule to the meals served to the conversations between teachers and students.