Yoga is divided into four schools: 1. Karma yoga belongs to action yoga and is practiced by extroverted and active people. It purifies the mind by practicing selfless behavior and makes people forget the gains and losses. He thinks that behavior is the first expression of life, and advocates focusing on the inner world and guiding more perfect behavior through spiritual activities. 2. Bhakti Yoga is a devotee, suitable for people with heavy emotions. As long as the practitioner's motivation comes from love, he thinks that God is the embodiment of love. Through prayer, worship and various ceremonies, they dedicate themselves to God, open channels and turn their emotions into unconditional love or contribution. Singing hymns constitutes the only content of devout yoga. 3.Jnana Yoga Wisdom Yoga is the yoga of knowledge and wisdom, and it is also the most difficult one. This requires great will and wisdom. Is to explore your own essence through your own heart. Before practicing wisdom yoga, practitioners need to practice other yoga schools and integrate what they have learned-because there is no selfless state and love for God, no physical strength and will, and the pursuit of self-realization can only be meaningless speculation. Wisdom yoga believes that there is a difference between low knowledge and high knowledge. The so-called knowledge of ordinary people is limited to the external manifestations of life and matter. It can be obtained directly or indirectly. The "knowledge" sought by wisdom yoga requires yoga practitioners to turn inward in an instant and experience and understand its inner essence through the appearance of all external things. Wisdom yoga practitioners can understand the true meaning of life by reading ancient classics that are regarded as revelations. Raja yoga raja yoga was founded by patanjali, who wrote Yoga Sutra. The eight branches of yoga summarized provide practical steps for yoga practitioners to purify their body and mind, which is called "King Way". My friend is a yoga teacher!