My niece sent this information to me the other day. I thought I would share this with you:
Mana is a principle that works in relation with the Hawaiian principles of HUNA, a method for growth and achievement . The 7 fundamental principles of Huna are:
IKE – The world is what you think it is
KALA – There are no limits, everything is possible
MAKIA – Energy flows where attention goes
MANAWA – Now is the moment of power
ALOHA – To love is to be happy with
MANA – All power comes from within
PONO – Effectiveness is the measure of truth. 
To oversimplify , Mana translates to power. The Hawaiians have a very different idea of ‘power’ than how most think of the word today. Mana is the life energy that flows through all living things. 
To those of us who have experienced the life-changing event of losing a child, we know about life energy. We certainly know how fragile it is. I hope the seven principles of Hanu help you regain your life’s energy and maybe even increase it. I have always thought of the Hawaiians as a happy bunch. Now I know why. Aloha.