We are having a lot of rain – trees, plants, and atmosphere are impregnated with water and wind, becoming greener and vivid together with heaven and earth.
When we sit, we also become like trees, stopping all karmas, which developed our bodies and minds – motor organs and sense organs – to survive as individuals.
But this sense of “my body and mind” gives us the sense of separation, solitude – separated from the whole world, people, and possessions.
Thus we get involved in impermanence – birth and death, gain and loss – and suffering (duk-kha, going wrong).
With karma we developed the three poisons of delusion (an independent eternal self), attachment, and aversion (craving and hatred).
So unless we stop karma and settle in wholly wholesome truth, we feel unsettled, unsafe, and unsatisfied.
But when we sit solid and steadfast, unmoved in nirvana (windless of karma), we still the three poisons, and find our original nature before separation, solitude and suffering.
Then only we can taste amrita, ambrosia of immortality, beyond small self with samsara suffering, and can really live on joy.