Text 18

naiva tasya krtenartho
nakrteneha kascana
na casya sarva-bhutesu
kascid artha-vyapasrayah

Translation

A self-realized man has no purpose to fulfill in the discharge of his prescribed duties, nor has he any reason not to perform such work. Nor has he any need to depend on any other living being. 

Commentary by Srila Prabhupada 

A self-realized man is no longer obliged to perform any prescribed duty, save and except activities in Krishna consciousness. Krishna consciousness is not inactivity either, as will be explained in the following verses. A Krishna conscious man does not take shelter of any person—man or demigod. Whatever he does in Krishna consciousness is sufficient in the discharge of his obligation.

Commentary by Sri Visvanatha Cakravarti Thakur

By performance of action there is no accrual of desired results. And by not performing the action there is no loss, because nothing in  the whole universe,  from  Brahma  down  to  the inanimate objects, is worth taking shelter of for his purpose.

The word vyapasraya is used similarly in the Puranas as follows:

vasudeve bhagavati bhaktim udvahatam nrnam
jnana-vairagya-viryanam neha kascid vyapasrayah

Persons engaged in devotional service to Lord Vasudeva, Krishna, have naturally perfect knowledge and detachment from this material world. Therefore such devotees are not interested in the so-called happiness or so-called distress of this world. SB 6.17.31

kirata-hunandhra-pulinda-pulkasa
abhira-sumbha yavanah khasadayah
ye 'nye ca papa yad-apasrayasrayah
sudhyanti tasmai prabhavisnave namah

Kirata, Huna, Andhra, Pulinda, Pulkasa, Abhira, Sumbha, Yavana, members of the Khasa races and even others addicted to sinful acts can be purified by taking shelter of the devotees of the Lord, due to His being the supreme power. I beg to offer my respectful obeisances unto Him. SB 2.4.18

argo 'syatha visargas ca vrtti-raksantarani ca
vamso vamsanucaritam samstha hetur apasrayah

O brahmana, authorities on the matter understand a Purana to contain ten characteristic topics: the creation of this universe, the subsequent creation of worlds and beings, the maintenance of all living beings, their sustenance, the rule of various Manus, the dynasties of great kings, the activities of such kings, annihilation, motivation and the supreme shelter. SB 12.7.9

From these statements it is seen that the addition of apa to asraya has the meaning of "perfect shelter."