Unknown connection script

I have this script and I wanted to know what one of the parts in it meant. Here is the script:

script.Parent.Touched:Connect(function(p)

if p.Parent:FindFirstChild("Handler") then

p.Parent.Handler.PlayAnim.Value = true

p.Parent.Handler.Infected.Value = true

end

end)

I wanted to know what the P in it meant. Because I’m trying to modify it.

P is the part that has been touched.

It’s the hit, meaning the other item touching the part.

Edit: p is just set for the parameter instead of hit.