[quote=@Saffirra Dusk]
<Snipped quote by VKAllen>

Could you explain what they are? In better detail. I know what a pack is. I just want to know what's in the pack.
[/quote]

A Priest's Pack is a bundle of items you can either buy for 19 gp, or get immediately when you create your character. The Priest's Pack consists of:

Backpack (2 gp)
Blanket (0.5 gp)
10 x Candles (0.1 gp)
Tinderbox (0.5 gp)
2/1 Day Rations (1 gp)
Waterskin (0.2 gp)
Alms Box (2 gp)
2 Incense blocks (2.5 gp)
Censer (5 gp)
Vestments (10 gp)

An Explorer's Pack is a bundle of items you can either buy for 10 gp, or get immediately when you create your character. The Explorer's Pack consists of:

Backpack (2 gp)
Bedroll (1 gp)
Messkit (0.2 gp)
Tinderbox (0.5 gp)
10 Torches (0.1 gp)
10/1 Day Rations (5 gp)
Waterskin (0.2 gp)
50' Hemp Rope (1 gp)

A trophy is a mundane item. Could be a memento or something that you feel atrached to. Could also be a thing you got from a particular monster.