Every woman have an intention to save something for her future. Some use to save money, some use to save jewels, some use to save land and properties for their future living. Similarly Mary, the sister of Lazarus have saved some pure nard, an expensive perfume for her future life. She might have saved it with some plans for her future needs.
One day Jesus came to her house and everyone in her house was dining with Jesus. But Mary took that pure nard, the expensive perfume and she poured it on Jesus' feet without any questions and doubts in her mind about her future life and she began to wipe His feet with her hair (John 12:3).