Can you hold onto my heart?

I welcome in the morning breeze,
I welcome in the sun,
a new day is ahead of me,
I'm out to have some fun,

A new chance to follow my dreams,
A new chance to explore,
the fantasy i've had for years,
the idea i adore,

If I leave remember me,
If I leave don't dart,
because I'll be coming back,
can you hold onto my heart,

It wont fit in my pocket,
It wont fit in my chest,
so will you keep it safe for me,
dont just do your best,

I dont want to find a broken heart,
I dont want to be left to grieve,
so will you still have love for me,
even after I leave?