Is Sahasrara Chakra awakening dangerous?

The tradition is careful on this point. Awakening of the Sahasrara should occur as the natural culmination of gradual work through all lower chakras — not as a sudden leap. When the Sahasrara opens before the lower chakras are sufficiently stable, it can manifest as disorientation, disconnection from ordinary reality, or what the tradition calls spiritual pride. This is why the importance of a qualified teacher, a stable moral foundation (Yama-Niyama), grounded body practice (asana), and progressive pranayama are emphasised before subtler practices. Approached gradually with proper support, the awakening of the Sahasrara is considered the most natural and blissful of all human experiences.