The Rebbe blesses the recipient and his wife with long, good years filled with meaningful actions rooted in Torah and mitzvos. He shares a parable comparing cleansing garments to purifying the soul, emphasizing that through Torah, mitzvos, and heartfelt prayer, one's soul regains its purity.
https://www.torahrecordings.com/rebbe/igroskodesh/004/sivan/1055