Something I can put in a box and look at

This is a really beautiful thought on human relationships from Virginia Woolf, written on August 8, 1928, in her diary:

"Eddy has just gone, leaving me the usual feeling: why is not human intercourse more definite, tangible: why aren't I left holding a small round substance, say of the size of a pea, in my hand; something I can put in a box and look at?"