Vairagya or Non-attachment also depends upon Jnana as well as Bhakthi. Deprive Vairagya of that basis and you will find it crumbling fast. Why, this is the prime cause for the want of spiritual progress at present. All these three have to be emphasised in Sadhana; they are not to be separated and striven for individually.
Bhakthi includes Jnana; if Vairagya (Detachment) is isolated from Bhakthi and Jnana, Jnana is isolated from Bhakthi and Vairagya and Bhakthi is isolated from Vairagya and Jnana; each is ineffective. The best that each isolated path is capable of is to give some training in purity. Never therefore develop conceit and declare that you are Bhakthas or Jnanis or Vairagis (Recluses).
Sadhakas must dip in the Triveni of Bhakthi-Jnana-Vairagya. There is no other way to salvation.
Reference: Jnana Vahini - Chapter 7