Hawaiian tattoos, like the tattoos of many different cultures have a vast variety of meaning and long cultural history. A good source of information would be your local library to check if they have any books about Hawaiian culture or the website A Polynesian Tattoo has information on the subject.
You can learn something new every day, including facts about tattoos. More women have tattoos than men.
Because they aren't hawaiiAn!! It's like saying why didn't Columbus learn Navajo or apache after all he came to their land!!
get a kangi book
One can learn the different meanings of acronyms through a site called abbreviations. The meaning of NDS is Novell Directory Services, however there are at least ten other definitions this could stand for.
The religion of Kabbalah has it's own website where one can learn about the history and meanings. There are also contacts for teachers and places to ask questions. Alternatively one could read the article on Wikipedia.
Ligation has at least two common meanings. It refers to a process in molecular biology and also a medical procedure. To learn about both, one could look on Wikipedia, Web MD, or the Mayo Clinic website.
the poems theme
I think you mean Tia Dalma learn all about her at http://en.wikipedia.org/wiki/Tia_Dalma Peace
In general, Youtube is a good source of information for various topics that one can learn better through watching than instructions. Of course, if anyone is not quite satisfied with only watching videos on Youtube, they can learn more about Hawaiian dance from Polynesian Dance World where there is much more specific information on dances.
If you are in Hawaii, a lot of public and private High Schools, as well as all of the state colleges (and probably most of the private colleges) offer Hawaiian language classes. There may also be private teachers and groups that learn and practice Hawaiian together. You can also buy a program that helps you to speak. Kamehameha Schools is now offering an online Distance Education course in Hawaiian language, if you are unable to attend classes physically. The cost is $25.
the poems theme
Pola has many meanings. You can review the list, below, and choose the one you want to learn more about.