Om - This is a Hindu symbol and it represents the three gods Brahma, Vishnu and Maheswara. It is also the meditation symbol. It will increase breathing capacity and clean the respiratory system. If it is chanted in a particular manner, it will increase the concentration and leads to good health.
This is the Hindu symbol for good Karma which is the cosmic principle according to which each person is rewarded or punished in one incarnation according to that person's deeds in the previous incarnation.
Unalome & lotus. Enlightenment. The Unalome is originally a hindu symbol that graphically recalls Shiva´s third eye and it represents wisdom and the path to perfection. Full description and hi-res here: http://www.tattootribes.com/index.php?newlang=English&idinfo=7591