Humility... not on purpose

Today I found out one of my friend's grandmother had a heart attack, and it made me really think how truly short our time is here on earth.
What is our purpose while we are here?
And how soon are we supposed to be fulfilling that purpose?
I know a lot of people, including myself, always think that they will begin their life when a certain thing starts or they finish the next step. But I think we forget that we are given the time of here and now. Now is the time to begin all of the things God has planned for our lives. I kind of have a hard time understanding the whole "calling" process. Because truly when we feel a "calling" towards something, is it something that we are just passionate about, or is it something the Lord truly wants us to live out? I think its a fine line between our wants to Gods wants. Lately I have really been looking at Jesus' life, and they way he treated people and the lessons he taught through his life.
Luke 14:1-14
Tells a parable that Jesus was revealing about humility. And I feel that this story really gives a sense of what our purpose is. We are here to truly be "the least of these." To be so humble we are exalted for our humility. And to be truly humble, we must have the absolute best interest for those around us. And in a sense, loving beyond our capacity.
"When someone invites you to a wedding feast, do not take the place of honor, for a person more distinguished than you may have been invited. If so, the host who invited both of you will come and say to you," Give this man your seat.' Then, humiliated you will have to take the least important place. But when you are invited, take the lowest place, so that when your host comes, he will say to you, 'Friend, move up to a better place.' Then you will be honored in the presence of all your fellow guest. For everyone who exalts himself will be humbled, and he who humbles himself will be exalted."
Either way the Lord finds a way to humble us, so why not be humbled in the first place, to later be exalted? I truly think God's purpose for every person he creates is to love, and nothing more. Love Him, love others, and love ourselves. We are all living examples of God's most intricate art work, and anything we end up being "called" towards better have the foundation of love. Imagine a world where every single person wanted everyone around them to be the best person they can possibly be. Now that is a cause worth living and fighting for. Love is our purpose, and what better time to start than now?
Love above all else,
Meg