It's the shelter of last resort. It is about one foot above sea level.

Sigh no more, ladies, sigh no more, Men were deceivers ever, One foot in sea and one on shore, To one thing constant never

Sigh no more, ladies, sigh no more, Men were deceivers ever, One foot in sea, and one on shore, To one thing constant never; Then sigh not so, But let them go, And be you blithe and bonny

If you can sum it up in one word, it's 'shelter,'

There was no need for them to go in there.

He's faltering once in a while. I don't know why. Standing over a 3-foot putt when it counts is a lot different than airing out your driver.