12. मुक्तानां परमा गति: contd.

Mukti = freedom from desires/KamaH and the samsara cycle of attachments.  It is a sukha Alayah.  The disguised anandaH is an illusion or an appearance and not real.  Such happiness derived out of impermanent objects is impermanent.  One day with your punya karma, a teacher will appear even without your searching, like a miracle and show you the paramā gatiH which is Mukti.

In Bhagwat gita chapter 8/16 Krishna says:

अब्रह्म भुवनाल्  लोकः पुनर्  अवर्तिनोSर्जुन l माम  उपेत्य  तु  कौन्तेय पुनर्  जन्म  न  विद्यते  ll

From this loka to another loka, the mind also travels with you.  If you know what is Mukti, then you are free in any loka.  All the lokas are impermanent.  There is no loka outside of you.  Brahman pervades all the Lokas.  If you know my true nature, there is no rebirth for you Arjuna.

Bhagvad Gita chapter 8/5:

अन्त -काले  च  माम  एव  स्मन्मुक्त्वा  कलेवरम् l यः  प्रयाति  स  मद्  भावं याति  नास्त्य  अत्र  संशयः ll

In your final moments, if you remember me at that time, you will become free and attain moksha without any doubt.

13. अव्ययम्: = that which is free from decline or destruction. व्ययं means that which is wasting or subject to destruction or depletion or something that is subject to  विनाशः, विकारः .  अव्ययम् is not subject to modification and is permanent.  Brahman is अव्ययम्.   It is अविनाशः , अविकारः .

न अस्य व्ययः विनाशः, विकारः, विद्यात् इति अव्ययः l———Shankara Bhashyam

14. पुरुषः It does not have a gender. He is the in-dweller of all things. Nothing gets attached to PurushaH.  He is free from Bhedas.

पुरं शरीरं तस्मिन् क्षेते इति पुरुषः l ———-Shankara Bhashyam

पुर means city or town.  The human body is a city with nine gates and death occurs from any of the openings.

तस्मिन् क्षेते means residing in that secret place.