1) Never travel 1000 years to the future.

2) Playing this game for 3 days straight is bad for your health.

3) I now enjoy sleep.

4) Don't trust anyone... They could be a dream.

Technically, the whole 'dream' thing is really sad...

The faith control Tidus' life. He is imaginary. He has no originality or personality... merely... a thought... trapped in oblivion. He is an endless void, a physical hologram.