Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 2
It is again the old vain imagination prompted by an uprising of the dissatisfied desires of the vital nature. Evidently the old wrong attitude of desire must have been waiting for its opportunity and it gave the opportunity also for the old vital to 
rise and indulge in its accustomed movements. It is also evident that it was the pressure of the desire coming up from below that removed the Ananda. The psychic Ananda and the desires of the complaining and clamouring vital cannot go together; if desire comes up, the Ananda is obliged to draw back – unless you reject the desire in time and refuse to make any compromise with it. Especially when the Mother was giving you wideness and peace and intense Ananda, it was irrational in the extreme to give room to an external desire and sacrifice all that for its sake.