Experience of an Arahant

While living in the state of liberation an Arahant still continues to perform the necessary functions of life. He sleeps, wakes up in the morning, eats, talks, performs various duties etc. Though he has to go through his daily life he has completely uprooted defilements; greed, hatred and ignorance. In his psycho-physical organism there is no more craving, which sustains the process of becoming leading to future existences. From the effective side of human experience, the state of Nibbana is a state of complete happiness, freedom from sorrow, worry and fear. The Arahant feels bodily pains, but it does not disturb his mind. It does not cause him annoyance or sorrow. Arahant is also in a state of complete fearlessness. All fear comes from the notion of self or ego. When we are frightened, what we are afraid of is a threat to the security of the self, to "my self" or those things I believe belong to me. But for an Arahant who had completely uprooted the notion of self, there comes liberation from all fear.

With the abandoning of all forms of attachments the Arahant is free of agitation, restlessness and worry. Again an Arahant is in a state of complete equanimity, with perfect balance of mind. He is not shaken by the eight worldly winds: gain and loss, fame and dishonour, praise and blame, pleasure and pain. Arahant's state of equanimity is not a state of indifference. The Arahant's mind is pervaded with immeasurable loving kindness and boundless compassion. This is the state of Nibbana in terms of feeling and emotion.

Further, having completely eliminated ignorance, an Arahant acquires no kamma . His willed actions do not have the potency of producing future rebirth. He still performs volitional actions but they are mere activities. They do not leave a trace on the mind, just as the flight of birds flying across the sky leaves no footprints. The Arahant still reaps the results of the kammas performed by him before enlightenment, but these do not disturb his mind.

He has complete knowledge and understanding. He is fully awakened. He sees things as they truly are. He is no longer misled by the distortions, projections, perversions born of ignorance.

http://www.beyondthenet.net/dhamma/nibbana.html