Analysis of Once in a blue moon best friend

Dear,
Once in a blue moon best friend
It's ok if we're not in touch on daily basis
It's ok if we're miles apart
It's ok if we meet once in three or four months,
But each night before sleeping i thank God for gifting me you
And I thankyou for bearing me and my tantrums , you are the only door i knocked then, knocking now and wish to knock till i die, you are the reason I sleep with happy face , thankyou for being real with me since ages , thankyou for not leaving my hand ,no matter what , thankyou for valuing me equally , thankyou for pampering me, thankyou for being the shoulder to lean on, thankyou for showering all your blessings
Thankyou for existing good human..!!