KATHOPNISHADA CHAPTER 6 AND SHLOKA 10

                                                           यदा पञ्चावतिष्ठन्ते

                                                         ज्ञानानि मनसा सह ।

                                                          बुद्धिश्च न विचेष्टते

                                                        तामाहुः परमां गतिम् ॥ 10

                                               YADA  PANCH  AVATISHTANTE

                                                DNYANANI  MANASA  SAHA |

                                               BUDHHICH  NA  VECHESHTATE 

T                                          TAM  AHUH  PARAMAM GATIM ||10

 WHEN 5 ORGANS OF PERCEPTION ARE ARE STILL OR CALM  AND INTELECT AND 

 THE MIND ARE ALSO CALM OR STILL THAT THEY CALL THE HIGHEST STATE, ||10

 This Shloka is describing what has been described in past . The Lord of Death is telling us as to how to achieve the status where we can perceive the SELF .We know that to achieve the Samadhi or perfect concentration, one must have EVERYTHING ELSE be calm or quiet. So we are told that the sense organs should be quiet. If the senses are active then we cannot concentrate. If I am watching an interesting show on TV I cannot concentrate and same with rest of the senses. The same goes for the mind .We may have blocked the senses  and so they are not disturbing the concentration. But the Mind may be going all over. There are different types of Mind.-MUDH, KSHIPT- VIKSHIPT-EKAGRA-NIRUDHA.  The MUDHA means there is maximum effect of TAMOGUNA  and so one engage in activities like alcohol drugs  and sleep  etc. There is is KSHIPT means it is thrown to outside activities like making money and projects and in this stage the RAJOGUNA is at maximum. Then one starts looking inside  and that is VIKSHIPT  . This is early stage of introspection, In this stage the SATWIC Guna is starting to come up . Then one tries to have concentration at one point in meditation and that is EKAGRA . The SATVIC Guna is getting more dominant. Once one achieves full concentration and there is no imbalance in mind that is NIRUDHA . So, in this shloka we are told that the mind has be at the stage of NIRUDHA. This happens when the senses are still and have no activity. The intellect is involved in analyzing  .- what he senses bring i=n as information and mind has the thoughts. In that sense intellect is part of mind . When we see something or smell something we will analyze it to KNOW what it is . Here the intellect comes in play. So if there is no sense perception  and the mind has no thoughts then the intellect will be not having any role. This is the sate where we are at the HIGHEST STATE -as per this shloka.