God is an eternal Spirit and he gave man (who was created in his image) an eternal spirit to enjoy fellowship with him, receive gifts from him and to reciprocate love back to him.
While man cannot will himself to cease to exist, he can determine in this life where he will spend eternity.
I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held: 10 And they cried with a loud voice, saying, How long, O Lord, holy and true, dost thou not judge and avenge our blood on them that dwell on the earth?
Death is simply the separation of the body from the soul/spirit. -
And they ridiculed Him, knowing that she was dead. 54 But He put them all outside, took her by the hand and called, saying, “Little girl, arise.” 55 Then her spirit returned, and she arose immediately.
While the body appears sleeping, is unconscious, & "knowing nothing" after death, the soul most certainly is not sleeping at all.