mano hridi nirudhya ca
murdhny adhayatmanah pranam
"The yogic situation is that of detachment from all sensual engagements. Closing all the doors of the senses and fixing the mind on the heart and the life air at the top of the head, one establishes himself in yoga."
This sloka tells of a high stage. Kaivalyam also is a superior stage like His place Vaikuntam. In both places there is no birth or death; no sufferings of old age or hunger. We have to carefully note that this equality is only in respect of these alone; but the other advantages of serving the Lord and enjoying the company of other devotees like Adisesha or Garuda or the Alwars and Acharyas, in Vaikuntam, will not be there. Comparing to worldly pleasures kaivalyam may look superior, but compared to Moksham and Bhagavath Anubhavam, kaivalyam is much inferior. We should never aspire for kaivalyam; though there are some persons who do not consider being servant of the Lord and think of independence. For them kaivalyam is recommended. Sarva = all, dvaram = holes, samyamya = plugged, mano = mind, hridi = [ the Lord ] in the heart, nirudhya = well established or focussed. Sensual desires find many holes and leak out. So those holes are to be plugged. That is mind is not allowed to drift away. Then this mind has to be diverted on the Lord well founded in the heart. All through life this kaivalyarti has been meditating on the Lord. He should aspire for removing rebirths and the sufferings in samsaram. He should therefore think of the Lord as an embodiment of all these qualities. Controlling the sensual organs and diverting the mind on heart is called pratyaharam in ashtanga yoga practice. This we saw in detail in Chapter 6. This practice is to be followed thruogh out one's life, if he wanted kaivalyam. Now in the later part of the sloka Sei Krishna tells what this person has to do in the last moments of life or just before death, when the atman departs the body. Atmana = one's own [self], pranam = prana [life air], murdhanyadhaya = via the principal nerve called sushumna nadi passing through the centre of the top of the head. Kaivalyarti has to place the prana on the top of the head via sushumna nadi. Aiswaryarti placed the prana between the eye brows. Yoga dharanam = [in Bhakti yoga] remembering the Lord, asthitho = one should remain. That is this person, at the time of death with unwavering thoughts on the Lord possessing the qualities which are in kaivalyam and with the prana brought on the apex of the head via the sushumna nadi, should die. The Lord continues further n sloka 13, the reward for kaivalyarti dying like this.