Whenever we perform any such Dharam Karams, please perform them with full humility and dedicate them to the Gur and Guru and then they will become our Sat Karams.  These Sat Karams eventually bring us the GurParsaad.  Therefore, becoming “sarabh kee rayn” – Charan Dhool of the entire creation is the key to the purification.  Acceptance of our misdeeds and sins is the key to purification.  Becoming lowest of the lowest is the key to make our Hirda a Khalsa – a pure and clean Hirda.  Becoming a slave of the Bishta Ka Kiraa is the key to purification.  Utmost humility is the key to purification.  So please replace our mind with humility and our Hirda will be purified.