Guru

The Sanskrit guru literally means "heavy" or "weighty," and by extension one who carries the weight of authority and wisdom — a venerable teacher. A widely repeated traditional etymology reads gu as "darkness" and ru as "dispeller," giving the familiar image of one who leads from darkness to light.

As your short definition says, a guru is a spiritual teacher or guide who leads a student from ignorance toward knowledge. More than an instructor of technique, the guru traditionally transmits understanding through their example, presence and relationship with the student — guiding not just what you learn but how you see.

The role of the guru runs throughout Indian tradition, from the teacher–student dialogues of the Upaniṣads to devotional texts such as the Guru Gītā. Yoga has long been passed down through this personal lineage, the paramparā, in which teaching flows from teacher to student across generations.

In practice a guru may be a meditation teacher, a lineage holder, or a trusted mentor who knows you well enough to guide your path and question your blind spots. The relationship traditionally rests on trust, humility and steady contact over time, not on a single class or workshop.

A common and important clarification: the reverence given to a guru is not meant as blind obedience, and the tradition itself warns against teachers who exploit it. A genuine guru points you toward your own understanding and freedom, not toward dependence. Discernment in choosing a teacher is itself part of the path.