If you have "one," and you go on adding zeros in front of it, like this: 0 + 0 + 0 + 0001, does it become more than one? Does it add value to it? It does not. But if you put the "one" first and then add zeros after it: 1 + 0 + 0 + 0, the number goes on expanding to infinity. In the same way, the atheist lives in a world on his own & for him world is like the first "0 + 0 + 0001" ; there is something there, and he keeps on adding "things", but he doesn't get much. For him the world revolves around him only, for him his body, his social circle, his money, relatives etc. are prime but these things & people go away from him at the time of death. As his thinking is limited & he is not having faith in God so he is left alone. He is also not protected by God in this life & after life.
On the other hand, for a devotee God is like the second "1 + 0 + 0 + 0" & he puts God first in life before anything and in this way his thinking goes on expanding to infinity. By having such devotion, he is able to understand the mystery of this universe & God better. As everything in this world has originated from that single source called God so to keep Him prime & then adding things to it makes everything valuable.
Below are few verses of Bhagwat Gita explaining that un-manifest aspect of God:
aham krtsnasya jagatah
prabhavah pralayas tatha" (Bhagwat Gita: Chapter Seven verse 6)
"Sri Krishna said: All created beings have their source in these two natures. I am the source of all creation & into Me again it dissolves.
"mattah parataram nanyat
kincid asti dhananjaya
mayi sarvam idam protam
sutre mani-gana iva" (Bhagwat Gita: Chapter Seven verse 7)
"Sri Krishna said: O Arjuna, there is nothing else besides Me. Like clusters of yarn-beads formed by knots on a thread, all this world is threaded on me.
"bijam mam sarva-bhutanam
viddhi partha sanatanam
buddhir buddhimatam asmi
tejas tejasvinam aham" (Bhagwat Gita: Chapter Seven verse 10)
"Sri Krishna said: O Arjuna, know that I am the original seed of all existences, the intelligence of the intelligent, and the prowess of all powerful men."
So let's have faith in God. Let God come first always before any other thing in our life. As God is present everywhere & controls everything, so in this world everything has meaning because of God only. Let's all pray to that supreme, divine, all powerful God only.
Jai Sri Krishna