While it’s extremely dangerous to discard your cultivation and cultivate it once more, the gains you obtain would be enormous. Because every single time you cultivate again will transform your body and soul.
1 Rebirth - 5 x Body and Soul Strength - Chapter 969
2 Rebirths - 10 x Body and Soul Strength + Undying Body (You can reconstruct your body if your soul still remains while your body has been destroyed. Conversely, if your body remains but your soul is destroyed, you can use your body to reconstruct your soul as well.)
3 Rebirths - 20 x Body and Soul Strength + Soul would be able to leave the body and travel the World.
4 Rebirths - 40 x Body and Soul Strength + Able to break through the shackles of the body and merge into one with the world. Can become part of the heavens and the earth and remain eternal while the heavens and the earth exist.