Acts of Worship

What is the wisdom behind Prophet Muhammad ﷺ mentioning not only water when speaking about the cleansing of the heart and the deceased?

اللَّهُمَّ اغْسِلْ خَطَايَاىَ بِمَاءِ الثَّلْجِ وَالْبَرَدِ، وَنَقِّ قَلْبِي مِنَ الْخَطَايَا، كَمَا يُنَقَّى الثَّوْبُ الأَبْيَضُ مِنَ الدَّنَسِ، وَبَاعِدْ بَيْنِي وَبَيْنَ خَطَايَاىَ كَمَا بَاعَدْتَ بَيْنَ الْمَشْرِقِ وَالْمَغْرِبِ

O Allah! Wash away my sins with the water of snow and hail, and cleanse my heart from the sins as a white garment is cleansed of filth, and let there be a far away distance between me and my sins as You have set far away the East and the West from each other.