We should never think of our so-called advancement as being conditioned by or dependent upon some set of material circumstances such as marriage, vanaprastha, or this or that. Mature understanding of Krsna consciousness means that whatever condition of life I am in at present, that is Krsna's special mercy upon me, therefore let me take advantage in the best way possible to spread this Krsna consciousness movement and conduct my spiritual master's mission. If I consider my own personal progress or happiness or any other thing personal, that is material consideration.
From Srila Prabhupada's letter to Madhukara, 4 January, 1973