WTH is enthalpy?

[jyount]

Makes no sense and can't find any good examples. Any help is appreciated.

[sgs23]

Total heat in a substance including latent heat and sensible heat. On the psychrometric chart the total amount of both sensible and latent heat in the air-moisture mixture. The enthalpy line is used to determine the total amount of heat that must be either removed (in cooling) or added (in heating) from conditioned air.

[jyount]

So,

Does an ice cube have low enthalpy, and boiling water have high enthalpy?

Whats confusing is that on the dumbed-down psychometric chart in the Ballast book, the enthalpy line continues to rise as temperature rises. It seems to me that there should be positive and negative enthalpy.

[Arch06]

here's what I found.

http://en.wikipedia.org/wiki/Ice_pack

It says ice has a relatively high enthalpy of fusion... so I would assume boiling water would have low enthalpy then.