In this verse Arjuna wants to understand the right path of spiritual evolution
and asks here a pertinent question regarding the two types of seekers, seeking one and the same goal.Some mediate
upon the manifested form of the infinite, directly perceptible to the sense organs. Others contemplate upon the
unmanifested supreme, not directly perceptible to the sense organs. Both of them are sincere and progress
onwards.But the question is as to which, out of these type of seekers, is better versed in yoga.
In this verse Lord explains three main necessary conditions that are necesaary and unavoidable for one to
become a true devotee. Perfect faith,ever steadfast in worship and one's mind totally merged with the concept
of god, if these three are accomplished in anyone , he is considered as the most steadfast devotee by the Lord.
Verse 3 and 4
In these verses Lord is trying to describe those who meditate upon the unmanifest, the imperishable, the indefinable,the omnipresent,the immovable and the eternal form of Lord. Lord says that those who meditate the unmanifest form of Lord fixing their mind on the unmanifest, are able to control their sense organs, keep themselves equanimous and make it their nature to serve others too reach the same goal the supreme self.
In this verse Lord declares that those whose thoughts are fixed on the unmanifest they have to face greater difficulty in reaching the supreme. Lord explains why it is hard for the embodied to reach the unmanifest.
Embodied means those who are attached to their bodies. If one lives only a life of sensuality and satisfaction of body-cravings, one will find it too difficult to take to steady and continuous meditation upon the subtle theme of infinite,formless and allpervading. A mind and intellect agitated,panting and restless, suffering from desirous plays are not vehecles that can successfully fly beyond the frontiers of names and forms to the endless spiritual glory.