Cold water meditation
(1) Accumulation of saliva: This phenomenon happens to many people. What one has to do is to merely swallow the saliva mindfully, whilst not paying attention to the breadth. Immediately after this, one comes back to the breadth again. Thoughts are again being consciously pushed away, whilst concentrating on the air striking at the nostril during inhalation and exhalation
(2) Numbness and pain in the limbs: Again this is quite a common complaint At first, one should try to tolerate the pain or numbness as long as possible. Later, as these effects become more intolerable and affect one’s meditation, then one may stretch out one’s legs until the numbness or pain is considerably reduced. After that, one may resume the semi-lotus position again. However if one is sitting on an armchair, then there is no grounds for such complaints.