According to Greek mythology, Syringa was a beautiful nymph who captivated Pan, the god of the forests and fields. Pan chased Syringa through his domain until, finally, Syringa was exhausted and could only escape by turning herself into a plant - the fragrant flower we know now as lilac.
Lilac's meanings of first love and youthful innocence arise from its flowering time being a harbinger of spring. Purple-flowering lilacs convey the first emotion sof love, whereas white or pink flowering lilacs are associated with youthful innocence. In Russian folklore, cradling a newborn beneath a lilac bush would bring the child wisdom. In parts of the Mediterranean, lilac is closely associated with the festival of Easter because it so often blooms around that time. Lilac is also the flower for eighth wedding anniversaries. *
*Excerpt from The Secret Language of Flowers by Samantha Grey