Can someone teach me?

I love making triggers, but only some I get. Like for instance a save and load code, I understand the first part, but everything after that goes right over my head. If you can help me, you will get credit on most of my maps and spells etc.
_ _ _
|) l l_ /_\ ( l_ l_l l_ l l) l l l
| l_ l_ / \ ) l _ l l l _ l_ l . . .

Edit: Oops...that was supposed to look like HELP ME!!!...
Lol.

There are plenty of tutorials on triggering on this site. Check them out.