4.34-35 Tat etc.  Yaj=jnatva etc.  This :  the knowledge. By prostration :  by devotion. By iniry :  by  the consideration of pros and cons,  by good reasoning etc.  By service :  by practice.  You should learn [this],  For, those that are endowed with  knowledge  i.e.,  your own different  sense-organs, that are exceedingly favoured by consciousness, will point out nearby i.e.,  will lead the truth to you if  you remain practising in the said manner.  For this,   it has been said  that  they (sense-organs) are capable of showing the truth  i.e.,  they  show nothing but the truth. That has been said :
 
'The Yoga alone is the teacher of Yoga  [practice]' 
 
and 
 
'On  [reaching] that  [seeded Yoga]  [there arises] an 
insight,  truth-bearing'  (YS,  I,  48).
 
If  'those that are endowed with knowledge'  is interpreted to mean 'other wise persons',  then it would amount to say that what the Bhagavat  Himself had taught is untruth.  Or, the purpose of saying in this manner may be to teach a conventional rule :  Other persons too should learn from the men of wisdom only by prostration etc.,  and not by any other means.
 
The [locatives] atmani  'in your Self'  and mayi  'in Me' are in the same-case-relationship,   and they mean  'in your Soul that has attained (realised Its)  identity with Me'. Atho is an expletive.  In order to established the  [total]  sameness  (identity) of the Absolute with the  [individual]  Self, a certain characteristic mark   [of the two],  is mentioned  [here].  If the non-sameness (non-identity)  [of these two]  is intended, then the meanings 'choice'  etc.,  [of atho]  have no relevance here.										
 Saying that  'the sin also  perishes'  in the first verse  [of following two],  in order to clarify the earlier statement  'all actions, leaving no bit,  [meet their end in knowledge' - verse 33  above];  indicating, by  'all actions' - in the second verse-that the suggested meaning of  'leaving no bit (verse 33)' is  'not even a bit of mental impression  [of actions] survives';  [the Lord]  explains-