"The bless the pregnant women for normal delivery and for good health of the baby in womb."

Also according to Brilliant Light By Madabusi Subramanium:

It is given in the third eye of husband and wife who are not getting children.

Seems like a great application with Tasman Flax Lily flower essence: "Treats polycystic ovarian disease, also good to take one month before conception to strengthen child, if taken in the last three months of pregnancy can allow child to be born with open third eye. Also gives clearer psychic visions during meditation" according to Heiko Lade (New Zealand)

Also known as Sisupa

This one needs some extra explaination.  Hang Sa or in reverse Sa Hang is the sound of inbreath and outbreath.  In chinese this is Hay Gung, when you exhale the energy expands, when you inhale it withdraws like a baloon being inflated and deflated.  Generally.  The words are Hung and Ha.  Ha can be outbreath and Hung can be inbreath, this has a different effect as is the case in some Iron body systems.

The sound Hung in fact is actually an inbreath where the back part of the nasal cavity is constricted and the Sa is the outbreath.  Not many explain this fully.  This is the symbol for Hung Sa which is drawn with Sa above and Hang below.

Cleaner version of Hang or Hung:

Used for removing negativity on land, pets, ect. For increasing yield, good. Do it on four corners of the land, agricutlural farms (to increase yield).

On the upper left of the picture I posted before is Drishti Stambhan.  I have two versions.  The one in Brilliant Light by Madabusi Subramaniam and a larger version indicated below:

and

"It protects from evil eye, persons or houses. Can be a necklace or on walls or in pooja room or and entrance."

Taken from the Book Brilliant Light by Madabusi Subramanium the chapter titled: Lost Reiki Symbol Retrieved

 

Prosperit (Yvasudha):

 

 

"It gives prosperity. Also used for initiation and spiritual upliftment.  Found in Agastya's literature and used extensivly in ritualistic worship in Kerala"

 

The preview is available on Google Books: Brilliant Light by Madabusi Subramanium

Presumably it is used for Initiation into his system of Nadi Yoga which is based on Palm Leaf Manuscripts.  108 are commonly used these days, but there are supposed to be 1008.