dear sridhar, i never new these things in the quest of truth and in the process of knowing the aim of life i have learnt these things.Aim of life is not only to study, education, gain employment and marriage but to realise god and help people in your capacity.Further in india still being passive ,system, has become corrupt due blindedness of people so i in my capacity, for people under me i try to follow correct things and teach others, finally it is left to individuals.i am in defence and next two years will retire.in this part of jouney i have a wonderful husband a soulmate.certainly gods grace.i will certainly aspire for higher things once i am free.In defence you r tied down a littele.But for prayers never