What is 'it'

Somewhere far away
In a hidden space
Is a hidden emotion
That everyone wants to face

'It' takes time to find
'It's' not a simple thought
'It's' true capacity is overwhelming
That once reached will never rot

When 'it' comes your way
Grasp 'it' really tight
Don't try to define 'it'
Because every answers right

So tell me now
I'm asking what is 'it'
'it' is as simple as love
Where two hearts finally fit