It is true that a central sincerity is not enough except as a beginning and a base; the sincerity must spread as you describe through the whole nature.
The Meaning of Sincerity
There is one indispensable condition, sincerity.
What is meant by “sincere”?
What is meant by “sincere”? Sincerity means to accept the Divine influence only and not that of lower forces.
Sincerity means to be turned wholly to the Divine and accept only the Divine impulses—it means also the true and constant will or effort to be like this.
As the sadhak aspires to be an instrument of the Divine and one with the Divine, sincerity in him means that he is really in earnest in his aspiration and refuses all other will or impulse except the Divine’s.
I do not think there is any reason for anxiety about your sadhana. We feel always a great depth and sincerity of aspiration in you which keeps you in constant and close relation with us, and where there is this depth and sincerity and this closeness the progressive opening of the being is assured; for the openness already exists.
