Everything, whatever we are thinking, doing, imagining, making plan, etc., the heart is so nice, it keeps a stock, photographic stock. Sometimes we have got experience: all of a sudden a thought comes which has no connection with my present activities. Still, all of a sudden comes. So in the heart there are so many stocks of different lives because I am passing through different lives. Bhūtvā bhūtvā pralīyate (BG 8.19). So stock is there. It comes like bubble. Just like we will find in some reservoir of water, big, all of a sudden some bubble comes. Similarly, the heart is the stock of so many dirty things. Dirty things means this experience of this material world. That is called dirty things. Because we are covered. We are spirit soul; we are now covered by these material dirty things. So it can be removed. Sva-tejasā. There is such potency of the spirit soul that it can come out. Simply the attempt should be made, assisted by or guided by a superior person. That is called spiritual master. He can guide, and we can come out of this slumber, sleeping in ignorance.
So Śrī Caitanya Mahāprabhu has given us a very easy process, this chanting of Hare Kṛṣṇa mahā-mantra.
- harer nāma harer nāma harer nāmaiva kevalam
- kalau nāsty eva nāsty eva nāsty eva gatir anyathā
- (CC Adi 17.21)
There is no other method for our spiritual progress. Simply chant Hare Kṛṣṇa mantra. And there is no loss on our part. If we chant Hare Kṛṣṇa mantra, there is no loss. You can chant, Caitanya Mahāprabhu says, niyamitaḥ smaraṇe na kālaḥ: "There is no hard-and-fast rule for chanting this Hare Kṛṣṇa mantra." Everyone can attempt. Even the children, they are also chanting. There is no loss, but gain is very much. That is the greatest gain, ceto-darpaṇa-mārjanam. Ceto-dar . . . that requires.