Noun
(religion, philosophy, psychology) The condition in which all reality is experienced in the present, with the past contained only in memory and the future only in anticipation or speculation.
(religion, philosophy) The nature of God's existence which is outside of time; the nature of a soul's existence in a supposed timeless afterlife.
Source: en.wiktionary.orgSpirituality tells the seeker not to live in the hoary past, not to live in the remote future, but to live in the immediacy of today, in the eternal Now. Sri Chinmoy
If you want to know what it means to be happy, look at a flower, a bird, a child; they are perfect images of the kingdom. For they live from moment to moment in the eternal now with no past and no future. Anthony de Mello
God contemplates Himself and all things in an Eternal Now that has neither beginning nor end. John Ruysbroeck