अन्वयः

सः कपिः that Hanuman, अस्त्रस्य astra's, वीर्यम् power, विचार्य reflecting, आत्मनः in himself, पितामहानुग्रहं च by the favour of Brahma, विमोक्षशक्तिम् the power of liberation from bondage, परिचिन्तयित्वा recalling about, पितामहाज्ञाम् by the order of Brahma, अनुवर्तते स्म he obeyed

M N Dutt

And thinking that the weapon was conferred by the Self-create and consecrated by sacred Mantras, Hanuman began to think of boons conferred by the Great-father. “In consequence of the power of the Lord of creation I am incapable of extricating myself from these bonds." (Knowing this by means of devout mediation, he reflected again)-“This has been ordained by Him, and I must put up with this pain for sometime.” Revolving well the power of the weapon, the boon of the Great-father, and his own prowess to extricate himself from bonds, the monkey followed the Great-father's behest.

Summary

Reflecting within himself about the power of the astra, Hanuman recalled Braham's favour to him. He recalled his own power to liberate himself from the Brahmastra and resolved to abide by the order of Brahma.

पदच्छेदः

स	तद् (१.१)
वीर्यम्	वीर्य (२.१)
अस्त्रस्य	अस्त्र (६.१)
कपिर्	कपि (१.१)
विचार्य	विचार्य (√वि-चारय् + ल्यप्)
पितामहानुग्रहम्	पितामह–अनुग्रह (२.१)
आत्मनश्च	आत्मन् (६.१)–च (अव्ययः)
विमोक्षशक्तिं	विमोक्ष–शक्ति (२.१)
परिचिन्तयित्वा	परिचिन्तयित्वा (√परि-चिन्तय् + ल्यप्)
पितामहाज्ञाम्	पितामह–आज्ञा (२.१)
अनुवर्तते	अनुवर्तते (√अनु-वृत् लट् प्र.पु. एक.)
स्म	स्म (अव्ययः)

छन्दः

उपेन्द्रवज्रा [११: जतजगग]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८	९	१०	११
स	वी	र्य	म	स्त्र	स्य	क	पि	र्वि	चा	र्य
पि	ता	म	हा	नु	ग्र	ह	मा	त्म	न	श्च
वि	मो	क्ष	श	क्तिं	प	रि	चि	न्त	यि	त्वा
पि	ता	म	हा	ज्ञा	म	नु	व	र्त	ते	स्म
ज			त			ज			ग	ग