Remember: the time you feel lonely is the time you most need to be by yourself. Life's cruelest irony (Douglas Coupland, Shampoo Planet).
There - outside - is the whistling of the wind that touches the leaves and animates all that come into its contact. But there you are - not. Separated by some wall (real or imagined), some distance (physical or emotional); you wonder when, if?, the wind will ever get you. And if you wonder long enough, you become a little like [the wind] (Nunokawa, "The Circling Game"). Maybe, hopefully?, the longed-for wind was with you, in you, all along. Turns out it wasn't a matter of the wind getting to know you, but you getting to know the wind.
Never is [a man] less alone than when he is by himself (Cicero to Cato, Shakespeare, Julius Caesar).