who knows? - or - knows who?

From a boy who grew to a man who could,
Never express love as he should,
To explain his fears and tell of his doubts,
Though in his mind his thought were like shouts,
Erupting from inside and growing in strength,
Reaching too high, increasing in length,
Fears for himself and doubt of his own,
Locked inside for only him to be known,
But as the bulbs of flowers or the dying phoenix knows,
Out of their death new life regrows,
As with my mind and as with my heart,
New ideas conquer and consume with there part,
To know ones own future would make half a man,
For to know your destiny would turn i cant from i can,
Why try to get there if you already know,
That by sitting around it will come and then go,
So i cannot wait to see if you are in my TOMMOROW,
But merely try to ensure without any doubt,
That i am in yours with a heart full of shout.