A devotee never dies, rather he is already dead - he is entirely free from the fear of death

 (from "Guru Ramana" by S.S.Cohen):

17th August 1948 10-15 a.m. 

Mr. Rappold, an American devotee opens his eyes from meditation in which he seems to have been deeply sunk and raises his voice:

Rappold: Bhagavan, what should a devotee do at the time of death? 

Bhagavan:  A devotee never dies, rather he is already dead. (Then he stops and waits for a competent translator. Devaraja Mudaliar enters. Bhagavan completes the answer.) What should a devotee do at the time of death? What can he do? Whatever a man thinks in his lifetime, so he does in his last moment – the worldly man thinks of his worldly affairs and the devotee of devotion and spiritual matters. But a Jnani having no thoughts of any kind remains the same. His thoughts, having died long ago, his body also died with them. Therefore, for him, there is no such thing as death. 

Again, people fear death because they fear to lose their possessions. When they go to sleep they do not have such fear at all. Although sleep resembles death in leaving all possessions behind, it causes no fear in their hearts because of the knowledge that the next morning they will enter into their possessions once again. 

The Jnani, having no sense of possession, is entirely free from the fear of death. He remains the same after death as before it. 

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from Bhairava Stotra of Abhinavagupta:

svātmani viśvagate tvayi nāthe

tena na saṁsṛti-bhītiḥ kathā’sti /

satsvapi durdhara-duḥkha-vimoha-

trāsa-vidhāyiṣu karma-gaṇeṣu

O possessor of everything, though your devotees, bound by karma and conditioning of mind, are caught in the net of destiny that arouses troubles and bondage, still they are not afraid of the fret and fever of this world. Having realized this universe as your own existence they are not afraid of worldly difficulties, because fear exists only when there is someone else to inflict it, but when there is none other than You how can fear arise?

antaka! māṁ prati mā dṛśamenāṁ

krodha-karāla-tamāṁ vidadhīhi /

śaṅkara-sevana-cintana-dhīro

bhīṣaṇa-bhairava-śakti-mayo‘smi 

O angel of death, do not look towards me with wrathful and frightening eyes as I am always absorbed in the worship of Lord Śiva. Through constant devotion, meditation and reflection, I have become steadfast and courageous, one with the energy of the terrifying Bhairava, thus, your dreadful and frightening looks can do me no harm.

ittham-upoḍha-bhavan-maya-saṁvid-

dīdhiti-dārita-bhūri-tamisraḥ /

mṛtyur-yamāntaka-karma-piśācair-

nātha! namo‘stu na jatu bibhemi

O Lord Bhairava, I offer salutations to you who has awakened me to the realization that everything in existence is you alone.  As a result of this awakening, the darkness of my mind has been destroyed and I am neither frightened of the evil family of demons nor am I afraid of Yama, the fearful Lord of death.