The fourth type of pranayama described in Patanjali's yoga sutras involves transcending both internal and external objects, reaching a breathless state. It focuses on going beyond external breathing and internal thoughts.

1. Fourth type of pranayama-patanjali yoga sutra
Fourth type of pranayama
Bahyabhyantaravisayaksepi chaturthah|
1. Bahya-external
2. Abhyantara-internal
3. Viñaya-object
4. Aksepi-transcending
5. Chaturtha-fourth
The fourth pranayama is that which transcends the internal and external object,
called it breathless state.