Patient Endurance of the Uncreate

The Buddha said: ‘Your six (sense) organs should be disengaged in the same way. When you begin to disentangle them, you will realize that the ego (perceived subject) is void. When this voidness is perfectly clear, you will realize that all dharma (phenomena) are void. When you are disengaged from dharma, the voidness (of perceived subject and phenomena) will vanish. This is called the Patient Endurance of the Uncreate achieved by means of Samadhi in the Bodhisattva stage.’

The Śūraṅgama Sūtra