PROMISE OF GOD WILL NEVER FADE...

Some days back i went to ATM to take money.I was standing in a queue.i saw an old lady sitting at the steps of that ATM centre.i looked at her,she gave me a feeble look.She was really tired.my mind was moved seeing her pathetic condition.She was not a beggar.A beggar will ask money to everyone.she was sitting there quitely.
As the queue was moving i got closer to her.when i got near her she told "Can you give me some money to have food,i didn't had anything".
i took my purse and took a 20 Rs note and gave it to her.i took my food before 2-3 hours.But she.. she was starving for many hours ....i don't know.But she looks really tired.
she only asked me for the money and not to any one else. I don't know why...
That night i prayed to god and i cried for her,for her pathetic situation.
i cried so much to lord.
There are so many people like this around me..But what can i do??
I cant help all of them giving money because its not my money i'm using but my parents' money.I am not earning anything..because i'm still a student..

That day i decided to do something to the poor people around me.
I prayed to god about this.Suddenly i remembered a promise God gave me some years back..that my family will become a missionary family and we'll do help poor people..He is really caring me and know my thoughts..
Thank You my Father in heaven....for such a promise...