They say you only live ONCE. But that is not true at all. Enjoy this epic Muslim short film on the true nature of what happens after your death.
The final verse "Read your book" refers to final day of judgement when we return to Allah to be judged. Our book will be represented to us on this day. The book will be a record of all our deeds in this life, the big, the small, the bad or the good. On the day of the judgement, we will be held accountable of all these deeds.
Every soul will taste death, and you will only be given your [full] compensation on the Day of Resurrection. So he who is drawn away from the Fire and admitted to Paradise has attained [his desire]. And what is the life of this world except the enjoyment of delusion. [3:185]
May Allah ease our journey in increasing our faith towards Him. InshaAllah.