“The lilac branches are bowed under the weight of the flowers: blooming is hard, and the most important thing is – to bloom. (“A Story About The Most Important Thing”)”
― Yevgeny Zamyatin

“Lord Henry went out to the garden and found Dorian Gray burying his face in the great cool lilac-blossoms, feverishly drinking in their perfume as if it had been wine.”
― Oscar Wilde, The Picture of Dorian Gray    

“A black cat among roses, phlox, lilac-misted under a quarter moon, the sweet smells of heliotrope and night-scented stock. The garden is very still. It is dazed with moonlight, contented with perfume…”
― Amy Lowell

I would say to anyone, cut some lilacs, bring them in the house and put them in a vase. The heady scent of spring and early summer will linger lightly in any room you choose.