Do you mean this?
Fourth Jhāna — The other half of bliss (happiness) disappears, leading to a state with neither pleasure nor pain, which the Buddha said is actually a subtle form of happiness (more sublime than pīti and sukha). The breath is said to cease temporarily in this state. The remaining qualities are: "a feeling of equanimity, neither pleasure nor pain; an unconcern due to serenity of awareness; unification of mind, contact, feeling, perception, intention, consciousness, desire, decision, persistence, mindfulness, equanimity & attention -
https://en.wikipedia.org/wiki/Dhy%C4%81na_in_Buddhism
You can read more there. Picking out one part of a whole context doesn't convey the practice and contemplation gained to this point, so you have to look deeper at a more inclusive context of Buddhism as I see it.