Arahanta . This is the highest stage of spiritual attainment, reaches through the complete eradication of all defilements, including the 5 higher fetters, which are attachment to the realms of form (ruparaga), attachment to immaterial(aruparaga), conceit (mana), restlessness (uddhacca), & ignorance (avijja). An Arahant: being perfect, the Arahant has no further need to practice for his own sake. Although continuing to serve fellow beings, teaching and giving them advice, the Arahant accumulates no fresh kamma, working for his or her own good but solely for the good of others. Arahant lives in perfect calm &equanimity. The Arahant becomes one with the Buddha in purity of heart, in wisdom and compassion. This is the ultimate achievement, the highest spiritual development. The Worthy One transcends the conditions of birth and death. At the final moment of his present life, he is said to pass away with no residue of kamma remaining to cause further rebirth.