Witness.

This one goes to my little sister! The title is related to the meaning of her name, Sakshi. And I can say, she's definitely a witness of all of my life events.

We might not get along every time,

We may be cross very often
But for her, I'll be ready to invest a dime,

She's the one to make my heart soften.

She is my closest ally, my partner in crime

With her squeaking voice, she can deafen!
Together we range from the ridiculous to the sublime,

Our bond is one which will always stiffen.