Spawning is what a player does when they enter a rust server for the first time. Spawning also occurs after death.
Items[]
You spawn in rust with a Rock and a Torch for primitive bashing and lighting respectively.
Stats[]
When you spawn in rust your stats will be around 60 HP(?), 50 Hunger(?), 50 Hydration(?) which means that water is usually the first resource that a fresh spawn would look for.
Mechanics[]
Spawning can be abused by the usage of Sleeping Bags when raiding to give raiders an 'extra life' in case they die in the raid.