ga,gaa.gi.gI,gu,go.

What is this? just looks like spelling base in vernacular, Kannada. looks like that is true. but it says something also. it could be a group of words, linking to vaishnava philosophy. This I could realize when following a pravachana on viswaroopa darshana; this word is heard a number of times when either following Mahabharata or bavadgeetha.

What do the letter combination, ga,gaa,gi,gE, etc mean is the topic of the present context.
The first letter ga, means gange, the holy river of hindus.
The second letter gaa, means gaayathri,
The third is the first gireehsha, mountain god either shiva or venkateswara.
the forth,is gee, is geetha
next is gu, symbolises with guru, the teacher or acharya, the one who takes the pupil towards the spirutial goal.
The last is go, govinda,the lord himself,the ultimate goal to reach him to obtain sayujya.
The gist is the step by step path for the solvation of one's self. The Hindu philosophy believes in the rebirth. But if one wants to avoid rebirth, he should win over the bad qualities like anger, jealousy, greed, ego etc. So, most of the believers in our philosophy tries to achieve this goal.
Thus, the above combination of words, means that a subject who feels reach the god, Govinda, and merge with him should have a dip in ganga and chant gayatri daily, chant namo narayana or om namah shivaaya obtained through a guru or achaarya.
so, in simple words, rememberthis combination of words,and follow to achieve the spirutial goal.