The mystics have studied the life of the cobra and they have found two wonderful things. One is that it does not waste energy. Birds fly until they are tired; animals run here and there. The cobra does not do so. It makes a hole where it lives and rests. It knows the best way of repose, a repose which it can continue as long as it wishes. We cannot do this. We human beings, of all creatures, know least about repose. We only know about work, not about repose. We attach every importance to work, but never to rest; this is because we do not find anything in rest but everything in work. The work of rest we do not see.