The thought of a future Resurrection™ can delay the normal grieving process. The WTS uses phrases like "asleep in death" to minimize the reality and finality of death and capitalize on their Resurrection™ doctrine. It keeps so many people entrenched in the belief system: they feel they have to remain faithful in order to realize that promise of seeing loved ones again. They use it as a stick to keep people in line: "What will we tell your grandma and grandpa when they are Resurrected™ in the Paradise™ and you aren't there?"
When I finally let go of the idea of Resurrection™, long-shelved grief over the loss of my grandparents and parents-in-law was overwhelming. I'd never cried over their deaths before then, because they were simply "asleep" until Jehovah's Time™ to bring them back to us. I was angry over the lie plus grief-stricken, and it hit me HARD.
As a measure of comfort, I planted a memory garden - a different rose for each loved one who has died. It's a lovely place to meditate and remember these special people.