Low pressure gathers dull grey weather with heavy cloud and
high pressure brings sun and brightness with few to no clouds.
It is the same with human energy when it gets low, so those grey negative thoughts can come in. By keeping energy reserves higher by taking regular breaks during the day to rest the mind so, will increase the return of brighter positive thinking.
Meditation is good for complete mind rest. See website for regular meditation groups starting in September 2021 at HJB Hypnotherapy see diary dates for more information and prices.