An awakened Kundalini causes involuntary physical movements like trembling and shaking in the body, accompanied by feelings of pleasure and spiritual awakening. The brain feels heavy, as if intoxicated. These are the first signs of an awakened Kundalini, followed by various other experiences. The full effects of an awakened Kundalini can be classified according to different aspects like Bhakti, Jnana, and Yoga, with yoga further divided into Hatha, Mantra, Laya and Rajayoga, collectively known as Mahayoga or Siddhayoga.