Jnana Yoga (Knowledge): The Yoga of Knowledge or Wisdom As yoga was refined, developed, and studied, yoga developed four main paths of practice— bhakti yoga (devotion), karma yoga (selfless service), raja yoga (meditation), and jnana yoga (self-inquiry). Swami Vivekananda did all these paths together. Even in the present time, the sadhana of these four paths can be done simultaneously. If you do self-study every day, then you do Jnana Yoga. If you remain happy, you do bhakti yoga. If you practice meditation you do Raja Yoga and if you work sincerely you practice Karma Yoga.
These four yoga paths are not separate paths. Each route is closely related to the other. When we think of God and are full of love for our fellow human beings and nature, then we are bhakti yogis. When we help other people by being close to them, then we are karma yogis. When we meditate and practice yoga, we are Raja Yogis, and when we understand the meaning of life and seek truth and reality, and then we are Jnana Yogis. Of the four main paths of yoga, Jnana Yoga is considered to be one of the most direct and yet challenging means, which requires a great deal of willpower, intelligence, and path.