Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 2
People will certainly regard it [maintaining absolute silence] as unnatural and there will be a lot of hubbub for a time. As to the dangers, the one real danger in these retirements (apart from 
the pride) is the becoming a prey of subjective influences and imaginations and losing the hold of reality which work and contact with others help to keep up. Of course one can lose that even while keeping contact as happened to X and others. But I suppose you have a sufficiently cool and critical head to avoid that danger.